bp: MB-11722: Don't set couch_port when creating a bucket

We're removing the couch notifier from ep-engine so this
parameter is no longer valid.

Removed unused parameter: couch_port

Change-Id: I7e697b51abd17115e04d55f151a86d2baa9d8308
Orig-Reviewed-on: http://review.couchbase.org/38834
Reviewed-on: http://review.couchbase.org/42978
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
bp: upgrade memcached engine config

Because ep-engine folks want to change static_config of ep-engine.

Change-Id: Ife0fc29a9ccfff3a5572b4c78dd6f313787118a7
Orig-Reviewed-on: http://review.couchbase.org/41265
Reviewed-on: http://review.couchbase.org/42979
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>