Remove unused build_target_platform parameter from make_build (#1187)

diff --git a/emsdk.py b/emsdk.py
index ed930a5..8ae6b07 100644
--- a/emsdk.py
+++ b/emsdk.py
@@ -905,8 +905,8 @@
   return build_env
 
 
-def make_build(build_root, build_type, build_target_platform='x64'):
-  debug_print('make_build(build_root=' + build_root + ', build_type=' + build_type + ', build_target_platform=' + build_target_platform + ')')
+def make_build(build_root, build_type):
+  debug_print('make_build(build_root=' + build_root + ', build_type=' + build_type + ')')
   if CPU_CORES > 1:
     print('Performing a parallel build with ' + str(CPU_CORES) + ' cores.')
   else:
@@ -1111,7 +1111,7 @@
     return False
 
   # Make
-  success = make_build(build_root, build_type, 'x64' if tool.bitness == 64 else 'Win32')
+  success = make_build(build_root, build_type)
   return success
 
 
@@ -1137,7 +1137,7 @@
     return False
 
   # Make
-  success = make_build(build_root, build_type, 'x64' if tool.bitness == 64 else 'Win32')
+  success = make_build(build_root, build_type)
 
   if success:
     bin_dir = os.path.join(root, 'bin')
@@ -1177,7 +1177,7 @@
     return False
 
   # Make
-  success = make_build(build_root, build_type, 'x64' if tool.bitness == 64 else 'Win32')
+  success = make_build(build_root, build_type)
 
   if success:
     bin_dir = os.path.join(root, 'bin')
@@ -1337,7 +1337,7 @@
     return False
 
   # Make
-  success = make_build(build_root, build_type, 'x64' if tool.bitness == 64 else 'Win32')
+  success = make_build(build_root, build_type)
   if not success:
     return False
 
@@ -1387,7 +1387,7 @@
     return False
 
   # Make
-  success = make_build(build_root, build_type, 'x64' if tool.bitness == 64 else 'Win32')
+  success = make_build(build_root, build_type)
 
   # Deploy scripts needed from source repository to build directory
   remove_tree(os.path.join(build_root, 'scripts'))