Removed obsolete and deprecated configurations/files

This removes the possibility to configure the WMS using old style configurations.

At the same time it removes the old style RemoteOWSStore configurations that have been replaced by the normal RemoteOWS resources.

These configurations have been made obsolete about halfway during the development of 3.1 (3.1.0 was the first official release with the new style config, but ). Since we are working towards 3.4.0 now, I think it's time to remove the deprecated configurations.

Take note that the old style config is not even covered by the handbook (only the new style config is explained).