Removing unused import in TouchInteractionService

Change-Id: I207e56189bbdb0105430a47f6a9069c6382354b2
diff --git a/go/quickstep/src/com/android/quickstep/TouchInteractionService.java b/go/quickstep/src/com/android/quickstep/TouchInteractionService.java
index 89a8454..80e1325 100644
--- a/go/quickstep/src/com/android/quickstep/TouchInteractionService.java
+++ b/go/quickstep/src/com/android/quickstep/TouchInteractionService.java
@@ -30,7 +30,6 @@
 
 import com.android.systemui.shared.recents.IOverviewProxy;
 import com.android.systemui.shared.recents.ISystemUiProxy;
-import com.android.systemui.shared.system.NavigationBarCompat.HitTarget;
 
 /**
  * Service connected by system-UI for handling touch interaction.
@@ -38,8 +37,6 @@
 @TargetApi(Build.VERSION_CODES.O)
 public class TouchInteractionService extends Service {
 
-    public static final int EDGE_NAV_BAR = 1 << 8;
-
     private static final String TAG = "TouchInteractionService";
 
     private final IBinder mMyBinder = new IOverviewProxy.Stub() {