MB-5233 Remove non-exist header file on windows
MB-5233 Remove non-exist header file on windows

We don't need to include process.h which doesn't exist on windows.

Change-Id: I8f48020f5b8ca55406f59dc53a9a3982a53bacdb
Reviewed-on: http://review.couchbase.org/15637
Reviewed-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>
Tested-by: Bin Cui <ed18693fff32c00e22495f4877a3b901bed09041@gmail.com>

sriganes/ep-engine,jimwwalker/ep-engine,abhinavdangeti/ep-engine,abhinavdangeti/ep-engine,hisundar/ep-engine,daverigby/kv_engine,teligent-ru/ep-engine,hisundar/ep-engine,hisundar/ep-engine,daverigby/kv_engine,jimwwalker/ep-engine,sriganes/ep-engine,abhinavdangeti/ep-engine,couchbase/ep-engine,membase/ep-engine,owendCB/ep-engine,abhinavdangeti/ep-engine,couchbase/ep-engine,teligent-ru/ep-engine,couchbase/ep-engine,owendCB/ep-engine,owendCB/ep-engine,daverigby/kv_engine,sriganes/ep-engine,daverigby/ep-engine,daverigby/ep-engine,teligent-ru/ep-engine,membase/ep-engine,daverigby/ep-engine,jimwwalker/ep-engine,owendCB/ep-engine,abhinavdangeti/ep-engine,hisundar/ep-engine,couchbase/ep-engine,teligent-ru/ep-engine,jimwwalker/ep-engine,membase/ep-engine,daverigby/ep-engine,sriganes/ep-engine,daverigby/kv_engine,membase/ep-engine