remove unecessary function

selfdrive/ui/mici/onroad/driver_camera_dialog.py

@@ -28,7 +28,7 @@ class DriverCameraDialog(NavWidget):
     if not no_escape:
       # TODO: this can grow unbounded, should be given some thought
       device.add_interactive_timeout_callback(self.stop_dmonitoringmodeld)
-    self.set_back_callback(self._dismiss)
+    self.set_back_callback(self.stop_dmonitoringmodeld)
     self.set_back_enabled(not no_escape)
 
     # Load eye icons
@@ -58,9 +58,6 @@ class DriverCameraDialog(NavWidget):
   def _handle_mouse_release(self, _):
     ui_state.params.remove("DriverTooDistracted")
 
-  def _dismiss(self):
-    self.stop_dmonitoringmodeld()
-
   def close(self):
     if self._camera_view:
       self._camera_view.close()