AthenaServices: MetaDataSvc does not set In(Out)putKey of FileMetaDataTool Fix ATEAM-779
requested to merge berghaus/athena:AthenaServices_MetaDataSvc_leave_FileMetaDataTool_alone into master
When setting up for EventFormat and FileMetaData the MetaDataSvc was attempting to set the properties InputKey and OutputKey. As These properties were removed from FileMetaDataTool these no longer need to be set, and trying to do so will cause an error.