Remove the failing integration test

- Remove the failing integration test added in #524 to test the nightly email notifications

Note: staging to trigger integration tests. All tests should pass.

Author: lahirumaramba

src/test/java/com/google/firebase/remoteconfig/FirebaseRemoteConfigIT.java

@@ -53,11 +53,6 @@ public static void setUpClass() {
     remoteConfig = FirebaseRemoteConfig.getInstance(IntegrationTestUtils.ensureDefaultApp());
   }
 
-  @Test
-  public void testToTriggerNightlyEmailNotifications() {
-    assertEquals("a", "b");
-  }
-
   @Test
   public void testValidateTemplate() throws FirebaseRemoteConfigException {
     final Template inputTemplate = remoteConfig.getTemplate();