MediaRouter: Fix lint warnings
am: 04d0f0e928

Change-Id: I3a72ca9b0ed368a3226f2607c9d8308152371512
diff --git a/v7/mediarouter/jellybean/android/support/v7/media/MediaRouterJellybean.java b/v7/mediarouter/jellybean/android/support/v7/media/MediaRouterJellybean.java
index 85071a4..7ade21d 100644
--- a/v7/mediarouter/jellybean/android/support/v7/media/MediaRouterJellybean.java
+++ b/v7/mediarouter/jellybean/android/support/v7/media/MediaRouterJellybean.java
@@ -121,9 +121,9 @@
             Field globalRouterField = routerObj.getClass().getDeclaredField("sStatic");
             globalRouterField.setAccessible(true);
             Object globalRouterObj = globalRouterField.get(null);
-            Method method = globalRouterObj.getClass().getDeclaredMethod("isBluetoothA2dpOn", null);
+            Method method = globalRouterObj.getClass().getDeclaredMethod("isBluetoothA2dpOn");
             method.setAccessible(true);
-            Object result = method.invoke(globalRouterObj, null);
+            Object result = method.invoke(globalRouterObj);
             return (Boolean) result;
         } catch (IllegalArgumentException | IllegalAccessException | NoSuchFieldException
                 | NoSuchMethodException | InvocationTargetException e) {