Remove redwood branch (never used)

Change-Id: Icb4fb72ea35e2d3ea304b85e66540c2cf84bdf5d
Reviewed-on: http://review.couchbase.org/28438
Reviewed-by: Trond Norbye <trond.norbye@gmail.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>