Revert of Reduce spam from CQ. (https://codereview.chromium.org/130983010/)

Reason for revert:
This did not fix the noise from the CQ. Reverting this and the previous patches.

Original issue's description:
> Reduce spam from CQ.
> 
> My previous change https://codereview.chromium.org/138173005/ made CQ
> post a message when the commit box was unchecked.  It shouldn't have
> posted it when CQ committed a change, but for some obscure reason it
> did.  Sometimes twice...
> 
> This patch unifies the way an issue is removed from the queue, and in
> particular, should eliminate most of the unwanted messages.  Some CQ
> messages about unchecked CQ box will still be posted when CQ drops it,
> and it is expected to be rare.
> 
> BUG=339116
> R=phajdan.jr@chromium.org
> 
> Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=248553

TBR=phajdan.jr@chromium.org,iannucci@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=339116

Review URL: https://codereview.chromium.org/136643007

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/commit-queue@248623 0039d316-1c4b-4281-b951-d872f2087c98
3 files changed