Delete python bytecode before every test run
Delete python bytecode before every test run

Bring over the cleaning line from run_tests.sh for the pyc files to
all the tox runs.

This should eliminate the need to clean -x -i to kill pyc files in
your local directory to get tests to pass.

Change-Id: Id236061c60ed5558459ef67752e0f504c5818b5c
Closes-Bug: #1368661

sapcc/monasca-agent,sapcc/monasca-agent,sapcc/monasca-agent