Trivial: Remove useless return

If a function returns nothing, do not add return in the end.

Change-Id: I298b8717462f68d3076a1619d674775be2a94c42

openstackclient/common/clientmanager.py

@@ -199,8 +199,6 @@ class ClientManager(object):
 
         self._auth_setup_completed = True
 
-        return
-
     @property
     def auth_ref(self):
         """Dereference will trigger an auth if it hasn't already"""

openstackclient/identity/v2_0/endpoint.py

@@ -87,7 +87,6 @@ class DeleteEndpoint(command.Command):
     def take_action(self, parsed_args):
         identity_client = self.app.client_manager.identity
         identity_client.endpoints.delete(parsed_args.endpoint)
-        return
 
 
 class ListEndpoint(command.Lister):

openstackclient/identity/v2_0/project.py

@@ -119,7 +119,6 @@ class DeleteProject(command.Command):
                 project,
             )
             identity_client.tenants.delete(project_obj.id)
-        return
 
 
 class ListProject(command.Lister):
@@ -222,7 +221,6 @@ class SetProject(command.Command):
             del kwargs['name']
 
         identity_client.tenants.update(project.id, **kwargs)
-        return
 
 
 class ShowProject(command.ShowOne):
@@ -317,4 +315,3 @@ class UnsetProject(command.Command):
                 if key in kwargs:
                     kwargs[key] = None
             identity_client.tenants.update(project.id, **kwargs)
-        return

openstackclient/identity/v2_0/role.py

@@ -126,7 +126,6 @@ class DeleteRole(command.Command):
                 role,
             )
             identity_client.roles.delete(role_obj.id)
-        return
 
 
 class ListRole(command.Lister):

openstackclient/identity/v2_0/service.py

@@ -101,7 +101,6 @@ class DeleteService(command.Command):
         identity_client = self.app.client_manager.identity
         service = common.find_service(identity_client, parsed_args.service)
         identity_client.services.delete(service.id)
-        return
 
 
 class ListService(command.Lister):

openstackclient/identity/v2_0/token.py

@@ -55,4 +55,3 @@ class RevokeToken(command.Command):
         identity_client = self.app.client_manager.identity
 
         identity_client.tokens.delete(parsed_args.token)
-        return

openstackclient/identity/v2_0/user.py

@@ -143,7 +143,6 @@ class DeleteUser(command.Command):
                 user,
             )
             identity_client.users.delete(user_obj.id)
-        return
 
 
 class ListUser(command.Lister):
@@ -330,7 +329,6 @@ class SetUser(command.Command):
             kwargs['enabled'] = False
 
         identity_client.users.update(user.id, **kwargs)
-        return
 
 
 class ShowUser(command.ShowOne):

openstackclient/network/v2/network.py

@@ -338,7 +338,6 @@ class SetNetwork(command.Command):
             raise exceptions.CommandError(msg)
 
         client.update_network(obj, **attrs)
-        return
 
 
 class ShowNetwork(common.NetworkAndComputeShowOne):

openstackclient/network/v2/security_group.py

@@ -123,7 +123,6 @@ class SetSecurityGroup(common.NetworkAndComputeCommand):
         # if there were no updates. Maintain this behavior and issue
         # the update.
         client.update_security_group(obj, **attrs)
-        return
 
     def take_action_compute(self, client, parsed_args):
         data = utils.find_resource(