Remove CQ for unsupported branch chrome/m145

Change-Id: I983ef0206406ad3ed05fb04230445a4b8d02698a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/1226257
Bot-Commit: chrome-branch-day <chrome-branch-day@chops-service-accounts.iam.gserviceaccount.com>
1 file changed