Cleanup unnecessary override dump method

Change-Id: Ic2909a4d382362ddec9bcc2c738d13120e792fd8

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java

@@ -52,8 +52,6 @@ import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
 import com.android.launcher3.util.TouchController;
 import com.android.quickstep.views.RecentsView;
 
-import java.io.PrintWriter;
-
 /**
  * Handles swiping up on the nav bar to go home from launcher, e.g. overview or all apps.
  */
@@ -226,7 +224,4 @@ public class NavBarToHomeTouchController implements TouchController, SwipeDetect
                 mEndState.containerType,
                 mLauncher.getWorkspace().getCurrentPage());
     }
-
-    @Override
-    public void dump(String prefix, PrintWriter writer) { }
 }

quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/TaskViewTouchController.java

@@ -42,8 +42,6 @@ import com.android.quickstep.SysUINavigationMode;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
 
-import java.io.PrintWriter;
-
 /**
  * Touch controller for handling task view card swipes
  */
@@ -307,7 +305,4 @@ public abstract class TaskViewTouchController<T extends BaseDraggingActivity>
             mPendingAnimation = null;
         }
     }
-
-    @Override
-    public void dump(String prefix, PrintWriter writer) { }
 }

src/com/android/launcher3/AbstractFloatingView.java

@@ -41,7 +41,6 @@ import com.android.launcher3.util.TouchController;
 import com.android.launcher3.views.ActivityContext;
 import com.android.launcher3.views.BaseDragLayer;
 
-import java.io.PrintWriter;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 
@@ -252,7 +251,4 @@ public abstract class AbstractFloatingView extends LinearLayout implements Touch
             @FloatingViewType int type) {
         return getOpenView(activity, type);
     }
-
-    @Override
-    public void dump(String prefix, PrintWriter writer) { }
 }

src/com/android/launcher3/dragndrop/DragController.java

@@ -46,7 +46,6 @@ import com.android.launcher3.util.Thunk;
 import com.android.launcher3.util.TouchController;
 import com.android.launcher3.util.UiThreadHelper;
 
-import java.io.PrintWriter;
 import java.util.ArrayList;
 
 /**
@@ -697,8 +696,4 @@ public class DragController implements DragDriver.EventListener, TouchController
     public void removeDropTarget(DropTarget target) {
         mDropTargets.remove(target);
     }
-
-    @Override
-    public void dump(String prefix, PrintWriter writer) { }
-
 }

src/com/android/launcher3/touch/AbstractStateChangeTouchController.java

@@ -50,8 +50,6 @@ import com.android.launcher3.util.FlingBlockCheck;
 import com.android.launcher3.util.PendingAnimation;
 import com.android.launcher3.util.TouchController;
 
-import java.io.PrintWriter;
-
 /**
  * TouchController for handling state changes
  */
@@ -583,7 +581,4 @@ public abstract class AbstractStateChangeTouchController
             this.endTime = duration + SystemClock.elapsedRealtime();
         }
     }
-
-    @Override
-    public void dump(String prefix, PrintWriter writer) { }
 }

src/com/android/launcher3/util/TouchController.java

@@ -32,5 +32,5 @@ public interface TouchController {
      */
     boolean onControllerInterceptTouchEvent(MotionEvent ev);
 
-    void dump(String prefix, PrintWriter writer);
+    default void dump(String prefix, PrintWriter writer) { }
 }