merging PR Chaosthebot#534: Reduce noise from chaosbot when closing i…

…ssues

Chaosthebot#534: Reduce noise from chaosbot when closing issues

Description:
We already get an alert that the issue is closed so no need to output another message.

:white_check_mark: PR passed with a vote of 9 for and 0 against, a weighted total of 9.0 and a threshold of 6.1, and a current meritocracy review.

Vote record:
@Leigende: 1
@MaloJaffre: 1
@PlasmaPower: 1
@amoffat: 1
@andrewda: 1
@qgustavor: 1
@rhengles: 1
@rudehn: 1
@xyproto: 1

cron/poll_read_issue_comments.py

@@ -143,10 +143,8 @@ def handle_vote_command(api, command, issue_id, comment_id, votes):
         sub_command = command.pop(0)
         if sub_command == "close":
             gh.issues.close_issue(api, settings.URN, issue_id)
-            gh.comments.leave_issue_closed_comment(api, settings.URN, issue_id)
         elif sub_command == "reopen":
             gh.issues.open_issue(api, settings.URN, issue_id)
-            gh.comments.leave_issue_reopened_comment(api, settings.URN, issue_id)
         else:
             # Implement other commands
             pass