Revert "Add test for proxy methods on default methods."

This reverts commit b6090e0dadf527c28cd79a1f825e7c3902f09335.

Change-Id: I7b239dabf8e95e53a32ad2f3c10cb284416bd4a8
diff --git a/luni/src/test/java/libcore/java/lang/reflect/ProxyTest.java b/luni/src/test/java/libcore/java/lang/reflect/ProxyTest.java
index 505c78a..abd5851 100644
--- a/luni/src/test/java/libcore/java/lang/reflect/ProxyTest.java
+++ b/luni/src/test/java/libcore/java/lang/reflect/ProxyTest.java
@@ -411,25 +411,4 @@
         assertFalse(field.isAnnotationPresent(Deprecated.class));
       }
     }
-
-    public interface DefaultMethod {
-      static final Object DEFAULT_RETURN_VALUE = new Object();
-      default Object test() {
-        return DEFAULT_RETURN_VALUE;
-      }
-    }
-
-    // Make sure we can proxy default methods.
-    public void testProxyDefault() throws Exception {
-      Object invocationHandlerReturnValue = new Object();
-      // Just always return the different object.
-      InvocationHandler handler = (o, m, oa) -> invocationHandlerReturnValue;
-      DefaultMethod dm = (DefaultMethod) Proxy.newProxyInstance(
-          Thread.currentThread().getContextClassLoader(),
-          new Class[] { DefaultMethod.class },
-          handler);
-
-      assertTrue(dm != null);
-      assertEquals(invocationHandlerReturnValue, dm.test());
-    }
 }