delete useless input parameter

In the function of `get_event_types`, the input parameter of `conf`
is not be used.

Change-Id: I405b13c183ac3f928f77f0afeea03d46cba5b755
Signed-off-by: dongwenjuan <dong.wenjuan@zte.com.cn>

vitrage/datasources/cinder/volume/driver.py

@@ -53,7 +53,7 @@ class CinderVolumeDriver(DriverBase):
                                                   SyncMode.UPDATE)[0]
 
     @staticmethod
-    def get_event_types(conf):
+    def get_event_types():
         return ['volume.create.start',
                 'volume.create.end',
                 'volume.attach.start',

vitrage/datasources/driver_base.py

@@ -97,7 +97,7 @@ class DriverBase(object):
 
     @staticmethod
     @abc.abstractmethod
-    def get_event_types(conf):
+    def get_event_types():
         """Return a list of all event types relevant to this datasource
 
         Example:

vitrage/datasources/heat/stack/driver.py

@@ -55,7 +55,7 @@ class HeatStackDriver(DriverBase):
         return conf[HEAT_STACK_DATASOURCE].notification_topic
 
     @staticmethod
-    def get_event_types(conf):
+    def get_event_types():
         return ['orchestration.stack.create.end',
                 'orchestration.stack.delete.end',
                 'orchestration.stack.update.error',

vitrage/datasources/listener_service.py

@@ -57,7 +57,7 @@ class ListenerService(os_service.Service):
         push_drivers = cls._get_push_drivers(drivers, conf)
 
         for driver in push_drivers:
-            for event in driver.get_event_types(conf):
+            for event in driver.get_event_types():
                 ret[event].append(driver.enrich_event)
 
         return ret

vitrage/datasources/neutron/network/driver.py

@@ -22,7 +22,7 @@ from vitrage.datasources.neutron.network import NEUTRON_NETWORK_DATASOURCE
 class NetworkDriver(NeutronBase):
 
     @staticmethod
-    def get_event_types(conf):
+    def get_event_types():
         return ['network.create.end',
                 'network.update.end',
                 'network.delete.end']

vitrage/datasources/neutron/port/driver.py

@@ -22,7 +22,7 @@ from vitrage.datasources.neutron.port import NEUTRON_PORT_DATASOURCE
 class PortDriver(NeutronBase):
 
     @staticmethod
-    def get_event_types(conf):
+    def get_event_types():
         return ['port.create.end',
                 'port.update.end',
                 'port.delete.end']

vitrage/datasources/nova/instance/driver.py

@@ -43,7 +43,7 @@ class InstanceDriver(NovaDriverBase):
                                               SyncMode.UPDATE)[0]
 
     @staticmethod
-    def get_event_types(conf):
+    def get_event_types():
         # Add event_types to receive notifications about
         return ['compute.instance.create.error',
                 'compute.instance.create.end',

vitrage/datasources/static_physical/driver.py

@@ -25,7 +25,7 @@ from vitrage.datasources.static_physical import STATIC_PHYSICAL_DATASOURCE
 
 class StaticPhysicalDriver(DriverBase):
     @staticmethod
-    def get_event_types(conf):
+    def get_event_types():
         return []
 
     @staticmethod

vitrage/datasources/zabbix/driver.py

@@ -186,5 +186,5 @@ class ZabbixDriver(AlarmDriverBase):
                                             SyncMode.UPDATE)[0]
 
     @staticmethod
-    def get_event_types(conf):
+    def get_event_types():
         return ['zabbix.alarm.ok', 'zabbix.alarm.problem']

vitrage/tests/unit/datasources/nagios/mock_driver.py

@@ -24,7 +24,7 @@ class MockNagiosDriver(NagiosDriver):
     """
 
     @staticmethod
-    def get_event_types(conf):
+    def get_event_types():
         return []
 
     @staticmethod

vitrage/tests/unit/datasources/zabbix/mock_driver.py

@@ -24,7 +24,7 @@ class MockZabbixDriver(ZabbixDriver):
     """
 
     @staticmethod
-    def get_event_types(conf):
+    def get_event_types():
         return []
 
     @staticmethod