Revert "Enable creation of .pdb files in Windows build"

This reverts commit d9989458809d929e198140165b26f68a797d39b8.

Change-Id: Ibf17a30d6fb6c4adb00c00b38cc794ec6b7d7ae6
Reviewed-on: http://review.couchbase.org/40821
Reviewed-by: Chris Hillery <ceej@couchbase.com>
Tested-by: Chris Hillery <ceej@couchbase.com>