Cleaned up init_connection_state in the psycopg2 backend.

settings_dict['TIME_ZONE'] is set in ConnectionHandler.ensure_defaults.

django/db/backends/postgresql_psycopg2/base.py

@@ -186,10 +186,9 @@ class DatabaseWrapper(BaseDatabaseWrapper):
         return connection
 
     def init_connection_state(self):
-        settings_dict = self.settings_dict
         self.connection.set_client_encoding('UTF8')
-        tz = 'UTC' if settings.USE_TZ else settings_dict.get('TIME_ZONE')
-        if tz:
+
+        tz = self.settings_dict['TIME_ZONE']
         try:
             get_parameter_status = self.connection.get_parameter_status
         except AttributeError: