removed duplicate 'quantum-server' services.

The service_names were the same thing. The ignore_failure is no longer necessary.

Change-Id: Ib9f0126ae9276a3cb9f88350ecce58b24e8fc9bb
Allow users to control sqlalchemy settings

Change-Id: I05826ea9772fd63676d93e9df985c0fe04990134
Merge "removed duplicate 'quantum-server' services."