Revert "Per request, locking memcached to revision from build 1075"

This reverts commit b7ef34de249fd321f32f7ddee72a3af010628c89.

Change-Id: I6e48cfb2fbb4587a9751702768466c0fdaf44ba8
Reviewed-on: http://review.couchbase.org/40169
Reviewed-by: Chris Hillery <ceej@couchbase.com>
Tested-by: Chris Hillery <ceej@couchbase.com>