Removed create_rpc_dispatcher methods
Removed create_rpc_dispatcher methods

Now that we don't have a special dispatcher class and we pass a list of
endpoints to corresponding functions instead, those methods are
unneeded.

blueprint oslo-messaging

Change-Id: If2b187fd8e553594212264f34b51b5b99c4630b2

hareeshpc/networking-cisco,CiscoSystems/networking-cisco,nikolay-fedotov/networking-cisco,CiscoSystems/networking-cisco,openstack/networking-cisco,cisco-openstack/networking-cisco,openstack/networking-cisco,hareeshpc/networking-cisco,noironetworks/networking-cisco,cisco-openstack/networking-cisco,noironetworks/networking-cisco,Gitweijie/first_project,Tehsmash/networking-cisco,Tehsmash/networking-cisco,Gitweijie/first_project