Revert "Fix ./run_tests.sh --pep8"
Revert "Fix ./run_tests.sh --pep8"

We are explicitly trying to get rid of scripts like this and flake8 makes
this one non-necessary.
Fix run_tests.sh to run flake8 properly.

This reverts commit 42243d6eb221d52bf6f62f835726cbe026e43447

Change-Id: I435e34b6acde7931a75f456ccc88da6476581643

stackforge/networking-mlnx,moshele/networking-mlnx-master,openstack/networking-mlnx,openstack/networking-mlnx,stackforge/networking-mlnx,moshele/networking-mlnx