Disabled conflict comments (#19731)

Author: ChiaMineJP

.github/workflows/conflict-check.yml

@@ -22,5 +22,3 @@ jobs:
           # targeting 2 minutes of retry, longest observed window thus far is ~30 seconds
           retryIntervalSec: 5
           retryMax: 24
-          commentToAddOnConflict: "This pull request has conflicts, please resolve those before we can evaluate the pull request."
-          commentToAddOnClean: "Conflicts have been resolved. A maintainer will review the pull request shortly."