Remove warning that's now breaking since the Raven API changed

rq/contrib/sentry.py

@@ -1,24 +1,12 @@
 # -*- coding: utf-8 -*-
 from __future__ import (absolute_import, division, print_function,
                         unicode_literals)
-import warnings
 
 
 def register_sentry(client, worker):
     """Given a Raven client and an RQ worker, registers exception handlers
     with the worker so exceptions are logged to Sentry.
     """
-    def uses_supported_transport(url):
-        supported_transports = set(['sync+', 'requests+'])
-        return any(url.startswith(prefix) for prefix in supported_transports)
-
-    if not any(uses_supported_transport(s) for s in client.servers):
-        msg = ('Sentry error delivery is known to be unreliable when not '
-               'delivered synchronously from RQ workers.  You are encouraged '
-               'to change your DSN to use the sync+ or requests+ transport '
-               'prefix.')
-        warnings.warn(msg, UserWarning, stacklevel=2)
-
     def send_to_sentry(job, *exc_info):
         client.captureException(
             exc_info=exc_info,