We should no longer need the timer hack.

benchmarks/.gitignore

 data/*.json
+data/*/*.json

src/gevent/libuv/loop.py

@@ -545,10 +545,3 @@ class loop(AbstractLoop):
             io_watcher._no_more_watchers = lambda: delitem(io_watchers, fd)
 
         return io_watcher.multiplex(events)
-
-    def timer(self, after, repeat=0.0, ref=True, priority=None):
-        if after <= 0 and repeat <= 0:
-            # Make sure we can spin the loop. See timer.
-            # XXX: Note that this doesn't have a `again` method.
-            return self._watchers.OneShotCheck(self, ref, priority)
-        return super(loop, self).timer(after, repeat, ref, priority)