Code cleanup (#466)

* Code cleanup
* Remove override again

src/displayapp/screens/Motion.h

@@ -18,7 +18,6 @@ namespace Pinetime {
         ~Motion() override;
 
         bool Refresh() override;
-        bool OnButtonPushed() override;
 
       private:
         Controllers::MotionController& motionController;
@@ -29,10 +28,7 @@ namespace Pinetime {
         lv_obj_t* label;
 
         lv_obj_t* labelStep;
-        static constexpr uint8_t nbStepsBufferSize = 9;
-        char nbStepsBuffer[nbStepsBufferSize + 1];
-        bool running = true;
       };
     }
   }
-}
+}