make og_moderation patch against correct version 7.x-2.0 #3830

The correct patch:

```diff
diff --git a/og_moderation.module b/og_moderation.module
index ba6a0a0..f1d2170 100644
--- a/og_moderation.module
+++ b/og_moderation.module
@@ -106,26 +106,6 @@ function og_moderation_node_access_records($node) {
 }
  
 /**
- * Implements hook_node_grants().
- */
-function og_moderation_node_grants($account, $op) {
-  $grants = array();
-  if ($op == 'view') {
-    $context = og_context();
-    $gid = (isset($context['gid'])) ? $context['gid'] : FALSE;
-    if ($gid) {
-      $types = og_get_all_group_content_bundle();
-      foreach (array_keys($types['node']) as $type) {
-        if (og_user_access('node', $gid, "view any unpublished $type content", $account)) {
-          $grants['og_view_any_unpublished_' . $type . '_content'][] = $gid;
-        }
-      }
-    }
-  }
-  return $grants;
-}
-
-/**
  * Implements hook_menu_alter().
  *
  * Modify menu items defined in other modules (in particular the Node and
```