Remove "changekind:NO_CHANGE" and "is:MAX" from Code-Review label copy

This follows chromium project's code-review copy condition.

Change-Id: I6e4f48a5ed27f146085f52dffa9fb27a655b5b27
Reviewed-on: https://webrtc-review.googlesource.com/c/All-Projects/+/284600
Reviewed-by: Andrey Logvin <landrey@google.com>
diff --git a/project.config b/project.config
index e236cdb..d1b8700 100644
--- a/project.config
+++ b/project.config
@@ -28,7 +28,7 @@
 	defaultValue = 0
 	function = NoBlock
 	ignoreSelfApproval = true
-	copyCondition = changekind:NO_CHANGE OR changekind:NO_CODE_CHANGE OR changekind:TRIVIAL_REBASE OR is:MAX OR is:MIN
+	copyCondition = changekind:NO_CODE_CHANGE OR changekind:TRIVIAL_REBASE OR has:unchanged-files OR is:MIN
 [label "Owners-Override"]
 	defaultValue = 0
 	value = 0 No score