Remove old unused node.js versions from manifest. (#1467)

diff --git a/emsdk_manifest.json b/emsdk_manifest.json
index 61b3e2d..be47335 100644
--- a/emsdk_manifest.json
+++ b/emsdk_manifest.json
@@ -59,295 +59,6 @@
 
   {
     "id": "node",
-    "version": "8.9.1",
-    "bitness": 32,
-    "arch": "x86",
-    "windows_url": "node-v8.9.1-win-x86.zip",
-    "linux_url": "node-v8.9.1-linux-x86.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%",
-    "is_old": true
-  },
-  {
-    "id": "node",
-    "version": "8.9.1",
-    "arch": "arm",
-    "bitness": 32,
-    "linux_url": "https://nodejs.org/dist/v8.9.1/node-v8.9.1-linux-armv7l.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%",
-    "is_old": true
-  },
-  {
-    "id": "node",
-    "version": "8.9.1",
-    "bitness": 64,
-    "arch": "x86_64",
-    "macos_url": "node-v8.9.1-darwin-x64.tar.gz",
-    "windows_url": "node-v8.9.1-win-x64.zip",
-    "linux_url": "node-v8.9.1-linux-x64.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%",
-    "is_old": true
-  },
-  {
-    "id": "node",
-    "version": "8.9.1",
-    "arch": "arm64",
-    "bitness": 64,
-    "linux_url": "node-v8.9.1-linux-arm64.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%",
-    "is_old": true
-  },
-  {
-    "id": "node",
-    "version": "12.18.1",
-    "bitness": 32,
-    "arch": "x86",
-    "windows_url": "node-v12.18.1-win-x86.zip",
-    "activated_path": "%installation_dir%/bin",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%",
-    "is_old": true
-  },
-  {
-    "id": "node",
-    "version": "12.18.1",
-    "arch": "arm",
-    "bitness": 32,
-    "linux_url": "node-v12.18.1-linux-armv7l.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%",
-    "is_old": true
-  },
-  {
-    "id": "node",
-    "version": "12.18.1",
-    "bitness": 64,
-    "arch": "x86_64",
-    "macos_url": "node-v12.18.1-darwin-x64.tar.gz",
-    "windows_url": "node-v12.18.1-win-x64.zip",
-    "linux_url": "node-v12.18.1-linux-x64.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%",
-    "is_old": true
-  },
-  {
-    "id": "node",
-    "version": "12.18.1",
-    "arch": "arm64",
-    "bitness": 64,
-    "linux_url": "node-v12.18.1-linux-arm64.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%",
-    "is_old": true
-  },
-
-
-  {
-    "id": "node",
-    "version": "14.18.2",
-    "bitness": 32,
-    "arch": "x86",
-    "windows_url": "node-v14.18.2-win-x86.zip",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-  {
-    "id": "node",
-    "version": "14.18.2",
-    "arch": "arm",
-    "bitness": 32,
-    "linux_url": "node-v14.18.2-linux-armv7l.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-  {
-    "id": "node",
-    "version": "14.18.2",
-    "bitness": 64,
-    "arch": "x86_64",
-    "macos_url": "node-v14.18.2-darwin-x64.tar.gz",
-    "windows_url": "node-v14.18.2-win-x64.zip",
-    "linux_url": "node-v14.18.2-linux-x64.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-  {
-    "id": "node",
-    "version": "14.18.2",
-    "arch": "arm64",
-    "bitness": 64,
-    "macos_url": "node-v14.18.2-darwin-x64.tar.gz",
-    "linux_url": "node-v14.18.2-linux-arm64.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-
-
-  {
-    "id": "node",
-    "version": "14.15.5",
-    "bitness": 32,
-    "arch": "x86",
-    "windows_url": "node-v14.15.5-win-x86.zip",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-  {
-    "id": "node",
-    "version": "14.15.5",
-    "arch": "arm",
-    "bitness": 32,
-    "linux_url": "node-v14.15.5-linux-armv7l.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-  {
-    "id": "node",
-    "version": "14.15.5",
-    "bitness": 64,
-    "arch": "x86_64",
-    "macos_url": "node-v14.15.5-darwin-x64.tar.gz",
-    "windows_url": "node-v14.15.5-win-x64.zip",
-    "linux_url": "node-v14.15.5-linux-x64.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-  {
-    "id": "node",
-    "version": "14.15.5",
-    "arch": "arm64",
-    "bitness": 64,
-    "macos_url": "node-v14.15.5-darwin-x64.tar.gz",
-    "linux_url": "node-v14.15.5-linux-arm64.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-
-
-  {
-    "id": "node",
-    "version": "15.14.0",
-    "bitness": 32,
-    "arch": "x86",
-    "windows_url": "node-v15.14.0-win-x86.zip",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-  {
-    "id": "node",
-    "version": "15.14.0",
-    "arch": "arm",
-    "bitness": 32,
-    "linux_url": "node-v15.14.0-linux-armv7l.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-  {
-    "id": "node",
-    "version": "15.14.0",
-    "bitness": 64,
-    "arch": "x86_64",
-    "macos_url": "node-v15.14.0-darwin-x64.tar.gz",
-    "windows_url": "node-v15.14.0-win-x64.zip",
-    "linux_url": "node-v15.14.0-linux-x64.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-  {
-    "id": "node",
-    "version": "15.14.0",
-    "arch": "arm64",
-    "bitness": 64,
-    "macos_url": "node-v15.14.0-darwin-x64.tar.gz",
-    "linux_url": "node-v15.14.0-linux-arm64.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-
-  {
-    "id": "node",
-    "version": "16.20.0",
-    "bitness": 32,
-    "arch": "x86",
-    "windows_url": "node-v16.20.0-win-x86.zip",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-  {
-    "id": "node",
-    "version": "16.20.0",
-    "arch": "arm",
-    "bitness": 32,
-    "linux_url": "node-v16.20.0-linux-armv7l.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-  {
-    "id": "node",
-    "version": "16.20.0",
-    "bitness": 64,
-    "arch": "x86_64",
-    "macos_url": "node-v16.20.0-darwin-x64.tar.gz",
-    "windows_url": "node-v16.20.0-win-x64.zip",
-    "linux_url": "node-v16.20.0-linux-x64.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-  {
-    "id": "node",
-    "version": "16.20.0",
-    "arch": "arm64",
-    "bitness": 64,
-    "macos_url": "node-v16.20.0-darwin-arm64.tar.gz",
-    "linux_url": "node-v16.20.0-linux-arm64.tar.xz",
-    "activated_path": "%installation_dir%/bin",
-    "activated_path_skip": "node",
-    "activated_cfg": "NODE_JS='%installation_dir%/bin/node%.exe%'",
-    "activated_env": "EMSDK_NODE=%installation_dir%/bin/node%.exe%"
-  },
-
-  {
-    "id": "node",
     "version": "18.20.3",
     "bitness": 32,
     "arch": "x86",
diff --git a/test/test.py b/test/test.py
index ce98b9e..9dde71b 100755
--- a/test/test.py
+++ b/test/test.py
@@ -176,9 +176,9 @@
 
     # Test the normal tools like node don't re-download on re-install
     print('another install must re-download')
-    checked_call_with_output(emsdk + ' uninstall node-15.14.0-64bit')
-    checked_call_with_output(emsdk + ' install node-15.14.0-64bit', expected='Downloading:', unexpected='already installed')
-    checked_call_with_output(emsdk + ' install node-15.14.0-64bit', unexpected='Downloading:', expected='already installed')
+    checked_call_with_output(emsdk + ' uninstall node-18.20.3-64bit')
+    checked_call_with_output(emsdk + ' install node-18.20.3-64bit', expected='Downloading:', unexpected='already installed')
+    checked_call_with_output(emsdk + ' install node-18.20.3-64bit', unexpected='Downloading:', expected='already installed')
 
   def test_tot_upstream(self):
     print('test update-tags')