Revert "Temporal: let Zuul comment in Gerrit changes"

This reverts commit d060c96f19573000378dc676deca3f9e8d730f42.

Reason for revert: this is no longer needed

Change-Id: I07513eafc10e5aee302e75e13115055a0f856a38
diff --git a/zuul.d/pipelines.yaml b/zuul.d/pipelines.yaml
index ba88cfb..8b21bdd 100644
--- a/zuul.d/pipelines.yaml
+++ b/zuul.d/pipelines.yaml
@@ -11,24 +11,28 @@
           scheme: 'zuul-check'
     enqueue:
       gerrit:
+        comment: False
         checks-api:
           scheme: 'zuul-check'
           state: SCHEDULED
           message: 'Change has been enqueued in check'
     start:
       gerrit:
+        comment: False
         checks-api:
           scheme: 'zuul-check'
           state: RUNNING
           message: 'Jobs have started running'
     no-jobs:
       gerrit:
+        comment: False
         checks-api:
           scheme: 'zuul-check'
           state: NOT_RELEVANT
           message: 'Project has no jobs configured'
     success:
       gerrit:
+        comment: False
         Verified: 1
         checks-api:
           scheme: 'zuul-check'
@@ -36,6 +40,7 @@
           message: 'Change passed all voting jobs'
     failure:
       gerrit:
+        comment: False
         Verified: -1
         checks-api:
           scheme: 'zuul-check'