Remove the comment on the MR when the branch is updated

managetests/app.py

@@ -162,13 +162,6 @@ class TestsManager:
         self.branches[branch].deploy()
         self.instances.load_branch(self.branches[branch])
 
-        # Send an alert on the merge request, if this branch has one
-        if mr is not None:
-            self.gitlab.post_comment(mr, "L'[istanza live]"
-                                         "(http://wwwtest.ubuntu-it.org/%s/) "
-                                         "per il branch **%s** è stata "
-                                         "aggiornata." % (branch, branch))
-
     def _process_merge_request_hook(self, data):
         """Process a merge request hook received from GitLab"""
         obj = data["object_attributes"]