Updated openstack/openstack
Project: openstack-dev/devstack  da61a1f711b1f6e3daa94a7d9dc07ce62b241a91

Remove internal bash8

We use the one installed from pypi in the tox venv, so dump
the original.  Fix up run_tests.sh.

Change-Id: I6b0aa1da9bfa4d742a7210e6ff800d72492a2178