Merge "- Removed sitebuildsettings, the deployment of this and manteinance in openday...

Merge "- Removed sitebuildsettings, the deployment of this and manteinance in opendaylight infra is troublesome and also the settings are isolated that can be manually tweaked in the parent POM: 	- opendaylight/commons/opendaylight/pom.xl 	- third-party/commons/thirdparty - Adjusted the deployment of third-party snapshots to happen in opendaylight-snapshot nexus repo, given there is only deployment access to that on jenkins and also because there is not reason to distinguish it, anyway the groupID already avoid collision."