Remove getRoster() helper method

gajim/common/connection.py

@@ -1638,9 +1638,6 @@ class Connection(CommonConnection, ConnectionHandlers):
         self.connection = con
         nbxmpp.features.getRegInfo(con, self._hostname)
 
-    def getRoster(self):
-        return self.get_module('Roster')
-
     def send_agent_status(self, agent, ptype):
         if not app.account_is_connected(self.name):
             return

gajim/common/modules/gateway.py

@@ -33,7 +33,7 @@ class Gateway(BaseModule):
 
         self._con.connection.SendAndCallForResponse(
             iq, self._on_unsubscribe_result)
-        self._con.getRoster().del_item(agent)
+        self._con.get_module('Roster').del_item(agent)
 
     def _on_unsubscribe_result(self, stanza):
         if not nbxmpp.isResultNode(stanza):

gajim/common/modules/presence.py

@@ -305,15 +305,15 @@ class Presence(BaseModule):
         if not app.account_is_connected(self._account):
             return
         if remove_auth:
-            self._con.getRoster().del_item(jid)
+            self._con.get_module('Roster').del_item(jid)
             jid_list = app.config.get_per('contacts')
             for j in jid_list:
                 if j.startswith(jid):
                     app.config.del_per('contacts', j)
         else:
             self._log.info('Unsubscribe from %s', jid)
-            self._con.getRoster().unsubscribe(jid)
-            self._con.getRoster().set_item(jid)
+            self._con.get_module('Roster').unsubscribe(jid)
+            self._con.get_module('Roster').set_item(jid)
 
     def subscribe(self, jid, msg=None, name='', groups=None, auto_auth=False):
         if not app.account_is_connected(self._account):