Revert CosmicsMuonIdProducer back to Legacy

CosmicsMuonIdProducer was missed when we converted all modules using
MuonDetLayerGeometry back to legacy to avoid thread safety problems.
Merge pull request #3632 from Dr15Jones/revertCosmicsMuonIdProducerToLegacy

Multithreading -- Revert CosmicsMuonIdProducer back to Legacy
Merge remote branch 'origin/CMSSW_7_1_X' into CMSSW_7_0_X