PCBC-231: Remove obsolete version string

Change-Id: I271cb3a90a2b61d2158f51c26a71894e79074090
Reviewed-on: http://review.couchbase.org/26235
Reviewed-by: Trond Norbye <trond.norbye@gmail.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>