Remove unused variables from InputClassifier

The variables remained from a different implementation. They are not
used by the code.
Also, add an "override" keyword in some places.

Bug: 117935272
Test: presubmit only
Change-Id: Id4edf2d2658287247a01567c126305e07d407df2
diff --git a/services/inputflinger/InputClassifier.h b/services/inputflinger/InputClassifier.h
index 1f7dd41..cb46494 100644
--- a/services/inputflinger/InputClassifier.h
+++ b/services/inputflinger/InputClassifier.h
@@ -162,15 +162,6 @@
     std::unordered_map<int32_t /*deviceId*/, nsecs_t /*downTime*/>
             mLastDownTimes; //GUARDED_BY(mLock);
     void updateLastDownTime(int32_t deviceId, nsecs_t downTime);
-    // Should only be accessed through isResetNeeded() and setResetNeeded()
-    bool mResetNeeded = false; //GUARDED_BY(mLock);
-    /**
-     * Check whether reset should be performed. Reset should be performed
-     * if the eventTime of the current event is older than mLastDownTime,
-     * i.e. a new gesture has already begun, but an older gesture is still being processed.
-     */
-    bool isResetNeeded(nsecs_t eventTime);
-    void setResetNeeded(bool isNeeded);
 
     /**
      * Exit the InputClassifier HAL thread.
@@ -188,11 +179,12 @@
 class InputClassifier : public InputClassifierInterface {
 public:
     explicit InputClassifier(const sp<InputListenerInterface>& listener);
-    virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs* args);
-    virtual void notifyKey(const NotifyKeyArgs* args);
-    virtual void notifyMotion(const NotifyMotionArgs* args);
-    virtual void notifySwitch(const NotifySwitchArgs* args);
-    virtual void notifyDeviceReset(const NotifyDeviceResetArgs* args);
+
+    virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs* args) override;
+    virtual void notifyKey(const NotifyKeyArgs* args) override;
+    virtual void notifyMotion(const NotifyMotionArgs* args) override;
+    virtual void notifySwitch(const NotifySwitchArgs* args) override;
+    virtual void notifyDeviceReset(const NotifyDeviceResetArgs* args) override;
 
 private:
     std::unique_ptr<MotionClassifierInterface> mMotionClassifier = nullptr;