Remove sitemap from curated list as it now has a stable release

defaults/curated.json

@@ -40,7 +40,6 @@
   "DDQG-unsupported-drupal-schema_diff-1.0.0.0-alpha2",
   "DDQG-unsupported-drupal-services-5.0.0.0-beta10",
   "DDQG-unsupported-drupal-shs-2.0.0.0-RC12",
-  "DDQG-unsupported-drupal-sitemap-2.0.0.0-RC1",
   "DDQG-unsupported-drupal-simple_oauth-6.0.0.0-beta6",
   "DDQG-unsupported-drupal-tamper-1.0.0.0-alpha4",
   "DDQG-unsupported-drupal-term_merge-2.0.0.0-beta6",