uasyncio: wait: Remove no longer needed "if", artifact of epoll impl.

uasyncio/uasyncio/__init__.py

@@ -55,9 +55,6 @@ class PollEventLoop(EventLoop):
         if DEBUG and __debug__:
             log.debug("poll.wait(%d)", delay)
         # We need one-shot behavior (second arg of 1 to .poll())
-        if delay == -1:
-            res = self.poller.poll(-1, 1)
-        else:
         res = self.poller.poll(delay, 1)
         #log.debug("poll result: %s", res)
         # Remove "if res" workaround after