Switch skiabot-test to use Gerrit by default

BUG=chromium:665580

Change-Id: Ib1107f0c4c382f55f310253f962dfe9406c4abcd
Reviewed-on: https://skia-review.googlesource.com/4877
Reviewed-by: Eric Boren <borenet@google.com>
diff --git a/codereview.settings b/codereview.settings
index 4da3cbe..a8b6039 100644
--- a/codereview.settings
+++ b/codereview.settings
@@ -1,6 +1,4 @@
-# This file is used by gcl to get repository specific information.
+# This file is used by git cl to get repository specific information.
 CODE_REVIEW_SERVER: codereview.chromium.org
+GERRIT_HOST: True
 VIEW_VC: https://skia.googlesource.com/skiabot-test/+/
-TRYSERVER_SVN_URL: https://skia-try.googlecode.com/svn
-PROJECT: skia
-