Remove premature optimization

This codepath is not in the critical path, and explicitly
telling the compiler what to do seems really premature.
When it results in multiple lines of #ifdef code it seems
even more wrong

Change-Id: I7a052efc89fc3bf44cd8e7e8579a009834604ef0
Reviewed-on: http://review.couchbase.org/23867
Tested-by: Trond Norbye <trond.norbye@gmail.com>
Reviewed-by: Sergey Avseyev <sergey.avseyev@gmail.com>