[automerger skipped] Delete unused getNamespace method am: 67b4512b07 am: 5f874d2032 -s ours am: 41e4371e34 -s ours

am skip reason: Change-Id I4f1a45f55e31d99903bf0cdac56c86a8d553a32c with SHA-1 67b4512b07 is in history

Change-Id: I17dbec824d797c42678a4ef9b23b1e61a1b0e745