Remove unused files from win32 directory

Nothing uses this.

Change-Id: I9a977b67590c1994d978a8ed710a7857e43bf8d9
Reviewed-on: http://review.couchbase.org/33326
Reviewed-by: Brett Lawson <brett19@gmail.com>
Tested-by: Mark Nunberg <mnunberg@haskalah.org>