mbim-port: no longer needed to request next transaction ID

Already handled by the MbimDevice if none given.

src/mm-broadband-modem-mbim.c

@@ -178,9 +178,7 @@ modem_load_current_capabilities (MMIfaceModem *self,
                                              modem_load_current_capabilities);
 
     mm_dbg ("loading current capabilities...");
-    message = (mbim_message_basic_connect_device_caps_query_request_new (
+    message = (mbim_message_basic_connect_device_caps_query_request_new (NULL));
-                   mbim_device_get_next_transaction_id (device),
-                   NULL));
     mbim_device_command (device,
                          message,
                          10,
@@ -449,9 +447,7 @@ modem_load_unlock_required (MMIfaceModem *self,
                                              modem_load_unlock_required);
 
     mm_dbg ("loading unlock required...");
-    message = (mbim_message_basic_connect_pin_query_request_new (
+    message = (mbim_message_basic_connect_pin_query_request_new (NULL));
-                   mbim_device_get_next_transaction_id (device),
-                   NULL));
     mbim_device_command (device,
                          message,
                          10,
@@ -584,9 +580,7 @@ modem_load_power_state (MMIfaceModem *self,
                                              user_data,
                                              modem_load_power_state);
 
-    message = (mbim_message_basic_connect_radio_state_query_request_new (
+    message = (mbim_message_basic_connect_radio_state_query_request_new (NULL));
-                   mbim_device_get_next_transaction_id (device),
-                   NULL));
     mbim_device_command (device,
                          message,
                          10,

src/mm-mbim-port.c

@@ -31,16 +31,6 @@ struct _MMMbimPortPrivate {
 
 /*****************************************************************************/
 
-guint32
-mm_mbim_port_get_next_transaction_id (MMMbimPort *self)
-{
-    return (self->priv->mbim_device ?
-            mbim_device_get_next_transaction_id (self->priv->mbim_device) :
-            0);
-}
-
-/*****************************************************************************/
-
 typedef struct {
     MMMbimPort *self;
     GSimpleAsyncResult *result;

src/mm-mbim-port.h

@@ -58,8 +58,6 @@ gboolean mm_mbim_port_open_finish (MMMbimPort *self,
 gboolean mm_mbim_port_is_open     (MMMbimPort *self);
 void     mm_mbim_port_close       (MMMbimPort *self);
 
-guint32  mm_mbim_port_get_next_transaction_id (MMMbimPort *self);
-
 MbimDevice *mm_mbim_port_peek_device (MMMbimPort *self);
 
 #endif /* MM_MBIM_PORT_H */

src/mm-sim-mbim.c

@@ -127,7 +127,6 @@ send_pin (MMSim *self,
 
     mm_dbg ("Sending PIN...");
     message = (mbim_message_basic_connect_pin_set_request_new (
-                   mbim_device_get_next_transaction_id (device),
                    MBIM_PIN_TYPE_PIN1,
                    MBIM_PIN_OPERATION_ENTER,
                    pin,