Remove ringbuffer_aligned from server_parse

This is already done in packetutils

Change-Id: I770ffb5ba5e163a4a1b208d666c79a623facfcca
Reviewed-on: http://review.couchbase.org/32267
Reviewed-by: Brett Lawson <brett19@gmail.com>
Tested-by: Mark Nunberg <mnunberg@haskalah.org>