flake8 will periodically fail as part of the gate pep8 job do to
expected issues. This query removes those failures from the unclassified
page while suppressing notifications about the failure (instead of
telling users to run recheck).
Leave bug on graphing page to watch for long term trends and issues.
Built on: 612d43f971
Change-Id: Id44372630e6d850db97bd8e7985e89ef759965a8