Revert of Added orphaned compiled Python file checks. (patchset #2 id:20001 of https://codereview.chromium.org/621533002/)

Reason for revert:
Makes `git cl upload` very slow in chrome checkouts.

Original issue's description:
> Added orphaned compiled Python file checks.
> 
> There have been a handful of cases where orphaned compiled Python files (.pyc
> files without an accompanying .py file) have been loaded preferentially by
> the presubmit scripts, causing weird problems. This adds a check and a mode for
> such files, either warning the user or deleting them.
> 
> BUG=None
> TEST=local
>   - Tested against local repository.
> 
> R=iannucci@chromium.org, szager@chromium.org
> 
> Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=292703

TBR=iannucci@chromium.org,szager@chromium.org,dnj@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=None

Review URL: https://codereview.chromium.org/701683002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@292818 0039d316-1c4b-4281-b951-d872f2087c98