Remove incorrectly used "# flake8: noqa"
Remove incorrectly used "# flake8: noqa"

"# flake8: noqa" option disables all checks for the whole file.
To disable one line we should use "# noqa".
Remove unused "# flake8: noqa" and fix hidden hacking errors.

Closes Bug: #1540254

Change-Id: I5c7f2f95038e0a26d1ebfb6a64aaae31b80ed5cc

openstack/python-saharaclient