(PECL inotify >= 0.1.2)
inotify_rm_watch — Remove an existing watch from an inotify instance
$inotify_instance
   , int $watch_descriptor
   )
   inotify_rm_watch() removes the watch
   watch_descriptor from the inotify instance
   inotify_instance.
  
inotify_instanceResource returned by inotify_init()
watch_descriptorWatch to remove from the instance
   Returns TRUE on success or FALSE on failure.