remove unnecessary const

src/common/emu_window.h

@@ -105,7 +105,7 @@ public:
      * @todo Fix this function to be thread-safe.
      * @return PadState object indicating the current pad state
      */
-    const Service::HID::PadState GetPadState() const {
+    Service::HID::PadState GetPadState() const {
         return pad_state;
     }
 
@@ -116,7 +116,7 @@ public:
      * @return std::tuple of (x, y, pressed) where `x` and `y` are the touch coordinates and
      *         `pressed` is true if the touch screen is currently being pressed
      */
-    const std::tuple<u16, u16, bool> GetTouchState() const {
+    std::tuple<u16, u16, bool> GetTouchState() const {
         return std::make_tuple(touch_x, touch_y, touch_pressed);
     }