Fixing assignment-from-no-return issue.
Fixing assignment-from-no-return issue.

While expecting a value on a function call, It is a good practic to
have a return statement instead of pass.

Change-Id: Ib1101824788273db3d99166c01b821dd6e9be215

trozet/tacker,stackforge/tacker,openstack/tacker,openstack/tacker,trozet/tacker,openstack/tacker,zeinsteinz/tacker,stackforge/tacker,priya-pp/Tacker,priya-pp/Tacker,zeinsteinz/tacker