The placement API configuration was binding a specific port *and* was supporting
to be called by the default HTTPd ports using a Location directive.
Given that the corresponding service catalog entry for the placement service type
doesn't mention the specific application port but is rather using the default
port 80, we can remove that specific port and just use the default config.
Note that we still need to use a VirtualHost directive for the specific placement
config because ErrorLog is only scoped for either server or virtualhost but can't
be set for a Location (or a Directory) context.
Change-Id: I9a26dcff4b879cf9e82e43a3d1aca2e4fe6aa3e6
70a6208464