Remove some remnants of VSA support

The VSA code removed by commit a3bab242 was the only user and
implementor of the 'create_volumes' RPC method.

Change-Id: Ic718d54d938059b034b78bc287668b0b9fa27f94

nova/scheduler/multi.py

@@ -43,11 +43,6 @@ multi_scheduler_opts = [
 FLAGS = flags.FLAGS
 FLAGS.register_opts(multi_scheduler_opts)
 
-# A mapping of methods to topics so we can figure out which driver to use.
-# There are currently no compute methods proxied through the map
-_METHOD_MAP = {'create_volume': 'volume',
-               'create_volumes': 'volume'}
-
 
 class MultiScheduler(driver.Scheduler):
     """A scheduler that holds multiple sub-schedulers.
@@ -70,14 +65,6 @@ class MultiScheduler(driver.Scheduler):
                         'volume': volume_driver,
                         'default': default_driver}
 
-    def __getattr__(self, key):
-        if not key.startswith('schedule_'):
-            raise AttributeError(key)
-        method = key[len('schedule_'):]
-        if method not in _METHOD_MAP:
-            raise AttributeError(key)
-        return getattr(self.drivers[_METHOD_MAP[method]], key)
-
     def schedule(self, context, topic, method, *_args, **_kwargs):
         driver = self.drivers.get(topic, self.drivers['default'])
         return driver.schedule(context, topic,

nova/tests/scheduler/test_multi_scheduler.py

@@ -46,9 +46,6 @@ class FakeVolumeScheduler(driver.Scheduler):
         super(FakeVolumeScheduler, self).__init__()
         self.is_update_caps_called = False
 
-    def schedule_create_volumes(self, *args, **kwargs):
-        pass
-
     def schedule(self, *args, **kwargs):
         pass
 
@@ -87,21 +84,6 @@ class MultiDriverTestCase(test_scheduler.SchedulerTestCase):
         self.assertTrue(mgr.drivers['volume'].is_fake_volume)
         self.assertTrue(mgr.drivers['default'].is_fake_default)
 
-    def test_proxy_calls(self):
-        mgr = self._manager
-        compute_driver = mgr.drivers['compute']
-        volume_driver = mgr.drivers['volume']
-
-        #no compute methods are proxied at this time
-        test_methods = {compute_driver: [],
-                        volume_driver: ['create_volumes']}
-
-        for driver, methods in test_methods.iteritems():
-            for method in methods:
-                mgr_func = getattr(mgr, 'schedule_' + method)
-                driver_func = getattr(driver, 'schedule_' + method)
-                self.assertEqual(mgr_func, driver_func)
-
     def test_schedule_fallback_proxy(self):
         mgr = self._manager