Fix control channel copy/paste error.

Author: jasongrout

jupyter_client/client.py

@@ -118,7 +118,6 @@ def start_channels(self, shell=True, iopub=True, stdin=True, hb=True, control=Tr
             self.hb_channel.start()
         if control:
             self.control_channel.start()
-            self.kernel_info()
 
     def stop_channels(self):
         """Stops all the running channels for this kernel.