Removing unused method isAvd

Bug: 136278866
Change-Id: I06396a60e44d25cd2b532f6ce31c2ce965263817

tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java

@@ -37,7 +37,6 @@ import android.content.res.Resources;
 import android.graphics.Point;
 import android.graphics.Rect;
 import android.net.Uri;
-import android.os.Build;
 import android.os.Bundle;
 import android.os.Parcelable;
 import android.os.SystemClock;
@@ -239,10 +238,6 @@ public final class LauncherInstrumentation {
         return null;
     }
 
-    public static boolean isAvd() {
-        return Build.MODEL.contains("Cuttlefish");
-    }
-
     static void log(String message) {
         Log.d(TAG, message);
     }