base-call: don't update state twice

The mm_gdbus_call_set_() methods update the properties in the same way
as via g_object_set(), no need to do it twice.

src/mm-base-call.c

@@ -551,18 +551,9 @@ mm_base_call_change_state (MMBaseCall *self,
     if (old_state == new_state)
         return;
 
-    g_object_set (self,
-                  "state",        new_state,
-                  "state-reason", reason,
-                  NULL);
-
     mm_gdbus_call_set_state (MM_GDBUS_CALL (self), new_state);
     mm_gdbus_call_set_state_reason (MM_GDBUS_CALL (self), reason);
-
-    mm_gdbus_call_emit_state_changed (MM_GDBUS_CALL (self),
-                                      old_state,
-                                      new_state,
-                                      reason);
+    mm_gdbus_call_emit_state_changed (MM_GDBUS_CALL (self), old_state, new_state, reason);
 }
 
 void

src/mm-iface-modem-voice.c

@@ -99,7 +99,6 @@ mm_iface_modem_voice_update_incoming_call_number (MMIfaceModemVoice *self,
         call = mm_call_list_get_new_incoming (list);
 
         if (call) {
-            g_object_set (call, "number", number, NULL);
             mm_gdbus_call_set_number (MM_GDBUS_CALL (call), number);
 
             /*