Remove obsolete conditions classes LArOFCMC and LArShapeMC
As far as I can see the two LAr conditions data objects LArOFCMC and LArShapeMC have no use (any more). The only reference I could find was in the database COOLOFL_LAR/OFLP200, the folders
/LAR/ElecCalibMC/OFC <timeStamp>run-lumi</timeStamp><symlinks>ILArOFC</symlinks><key>LArOFC</key><addrHeader><address_header service_type="71" clid="56306025" /></addrHeader><typeName>LArOFCMC</typeName>
and
/LAR/ElecCalibMC/ShapeFullWave <timeStamp>run-lumi</timeStamp><symlinks>ILArShape</symlinks><key>LArShape</key><addrHeader><address_header service_type="71" clid="119125774" /></addrHeader><typeName>LArShapeMC</typeName>
which seem to be unused by now.
For MC, we used a AlgTool (now CondAlgo) to produce OFCs on the fly. The Shape object is of type LArShape32MC.