MB-23347: Revert "MB-22163: Use get_if to fetch items for mutations"
MB-23347: Revert "MB-22163: Use get_if to fetch items for mutations"

Revert the patch until I've got time to start looking into this
(most likely next week)

This reverts commit aef7929f01907105d4044f3e6915faae54fbbb14.

Change-Id: I3cdf087c51d101c53f746b9472ebdddb7b42c5aa
Reviewed-on: http://review.couchbase.org/75322
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>

daverigby/kv_engine,couchbase/memcached,daverigby/kv_engine,daverigby/memcached,couchbase/memcached,couchbase/memcached,daverigby/kv_engine,daverigby/memcached,daverigby/memcached,daverigby/memcached,couchbase/memcached,daverigby/kv_engine