Disable pillowfight for win32

Change-Id: I5404860d97cc13baaf9d0df3e9152c241e40a2d7
Reviewed-on: http://review.couchbase.org/25094
Tested-by: Trond Norbye <trond.norbye@gmail.com>
Reviewed-by: Sergey Avseyev <sergey.avseyev@gmail.com>