CheckpointManager: Remove extraneuous logging
CheckpointManager: Remove extraneuous logging

"CheckpointManager::registering persistence cursor for vb:xx" is
printed for every vBucket created. Given it's never re-created (so no
other times message is printed), remove the log message given we
already have a message for when a VBucket is created:

    VBucket: created vb:33 with state:replica initialState:replica lastSeqno:4 lastSnapshot:{2,4} persisted_snapshot:{2,4} max_cas:... uuid:... topology:...

Change-Id: I62c3e1d3cac3ab072396f64361dbaed572ede3ce
Reviewed-on: http://review.couchbase.org/110759
Reviewed-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@couchbase.com>
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>

daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine