Remove getButtonState/setButtonState from PointerController

These APIs are not being used.

Bug: 217579815
Test: m libinputservice_test
Change-Id: I47fb5478caff7d77217c1da600c37556e6a288a8
diff --git a/libs/input/PointerController.h b/libs/input/PointerController.h
index 6d3557c..ca14b6e 100644
--- a/libs/input/PointerController.h
+++ b/libs/input/PointerController.h
@@ -50,21 +50,19 @@
 
     ~PointerController() override;
 
-    virtual std::optional<FloatRect> getBounds() const;
-    virtual void move(float deltaX, float deltaY);
-    virtual void setButtonState(int32_t buttonState);
-    virtual int32_t getButtonState() const;
-    virtual void setPosition(float x, float y);
-    virtual FloatPoint getPosition() const;
-    virtual int32_t getDisplayId() const;
-    virtual void fade(Transition transition);
-    virtual void unfade(Transition transition);
-    virtual void setDisplayViewport(const DisplayViewport& viewport);
+    std::optional<FloatRect> getBounds() const override;
+    void move(float deltaX, float deltaY) override;
+    void setPosition(float x, float y) override;
+    FloatPoint getPosition() const override;
+    int32_t getDisplayId() const override;
+    void fade(Transition transition) override;
+    void unfade(Transition transition) override;
+    void setDisplayViewport(const DisplayViewport& viewport) override;
 
-    virtual void setPresentation(Presentation presentation);
-    virtual void setSpots(const PointerCoords* spotCoords, const uint32_t* spotIdToIndex,
-                          BitSet32 spotIdBits, int32_t displayId);
-    virtual void clearSpots();
+    void setPresentation(Presentation presentation) override;
+    void setSpots(const PointerCoords* spotCoords, const uint32_t* spotIdToIndex,
+                  BitSet32 spotIdBits, int32_t displayId) override;
+    void clearSpots() override;
 
     void updatePointerIcon(PointerIconStyle iconId);
     void setCustomPointerIcon(const SpriteIcon& icon);