remove unnecessary module prefix
remove unnecessary module prefix

Change-Id: I3e6e3e4109663875492a101e9b27e1d65454515c
Reviewed-on: http://review.couchbase.org/79330
Tested-by: Artem Stemkovski <15a0730a27c69f62ab86f2b6c639fca202166c02@couchbase.com>
Reviewed-by: Dave Finlay <7b10a9ed9f70e64c30b07607a671ae61c33f14c8@couchbase.com>

membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server