Remove unused interface API

Bug: 111796429
Test: robotests
Change-Id: I5887a0a48285cf61777ac7c6a896d16dd7585a26

src/com/android/settings/overlay/SupportFeatureProvider.java

@@ -67,9 +67,4 @@ public interface SupportFeatureProvider {
      * @param activity Calling activity.
      */
     void startSupportV2(Activity activity);
-
-    /**
-     * Returns a url with information to introduce user to new device.
-     */
-    String getNewDeviceIntroUrl(Context context);
 }