1. What is the problem
When running DevStack script of the Tricircle, during the setup
of Nova_apigw, script tries to add some configuration options to
the Neutron configuration file. However this file doesn't exist
at that time, thus script fails.
2. What is the solution to the problem
Stop modifying the Neutron configuration file during the setup
of Nova_apigw. Instead, we modify that file during the setup
of Neutron server.
3. What the features need to be implemented to the Tricircle
to realize the solution
No new features. Some lines of scripts are removed.
Change-Id: I94ada1e5a49f14942fa4c00690cffe2a87428e75
bfe02339b3