Remove XML support from some v3 API plugins(e.g. services)

Remove XML support from the following v3 compute API plugins:

 - config_drive
 - services
 - simple_tenant_usage
 - versions

Part of blueprint remove-v3-xml-api

DocImpact

Change-Id: I58a29974253a5acfb04f42cf4712ba290203cb5a
Merge "Remove XML support from some v3 API plugins(e.g. services)"