diff --git a/includes/database/pgsql/database.inc b/includes/database/pgsql/database.inc
index f6ce6505102..85a8e831542 100644
--- a/includes/database/pgsql/database.inc
+++ b/includes/database/pgsql/database.inc
@@ -14,7 +14,6 @@
 class DatabaseConnection_pgsql extends DatabaseConnection {
 
   protected $transactionSupport;
-  //protected $lastInsertInfo = NULL;
 
   public function __construct(Array $connection_options = array()) {
 
diff --git a/includes/database/query.inc b/includes/database/query.inc
index 458c87d242e..9c7fdfcf4c7 100644
--- a/includes/database/query.inc
+++ b/includes/database/query.inc
@@ -630,7 +630,7 @@ class MergeQuery extends Query {
     // this method with database-specific logic, so this function serves only
     // as a fallback to aid developers of new drivers.
     
-    //Wrap multiple queries in a transaction, if the database supports it.
+    // Wrap multiple queries in a transaction, if the database supports it.
     $transaction = $this->connection->startTransaction();
     
     // Manually check if the record already exists.
diff --git a/includes/database/select.inc b/includes/database/select.inc
index 7aa45006b7f..3d10747735f 100644
--- a/includes/database/select.inc
+++ b/includes/database/select.inc
@@ -43,13 +43,6 @@ class SelectQuery extends Query implements QueryConditionInterface, QueryAlterab
    */
   protected $tables = array();
 
-  /**
-   * The values to insert into the prepared statement of this query.
-   *
-   * @var array
-   */
-  //protected $arguments = array();
-
   /**
    * The fields by which to order this query.
    *
diff --git a/includes/menu.inc b/includes/menu.inc
index 3da6494f3ca..c112028b219 100644
--- a/includes/menu.inc
+++ b/includes/menu.inc
@@ -2211,10 +2211,8 @@ function _menu_link_move_children($item, $existing_item) {
 function _menu_update_parental_status($item, $exclude = FALSE) {
   // If plid == 0, there is nothing to update.
   if ($item['plid']) {
-    // We may want to exclude the passed link as a possible child.
-    //$where = $exclude ? " AND mlid != %d" : '';
     // Check if at least one visible child exists in the table.
-     $query = db_select('menu_links', 'm');
+    $query = db_select('menu_links', 'm');
     $query->addField('m', 'mlid');
     $query->condition('menu_name', $item['menu_name']);
     $query->condition('plid', $item['plid']);
@@ -2225,7 +2223,6 @@ function _menu_update_parental_status($item, $exclude = FALSE) {
     }
 
     $parent_has_children = ((bool) $query->execute()->fetchField()) ? 1 : 0;
-    //$parent_has_children = (bool)db_result(db_query_range("SELECT mlid FROM {menu_links} WHERE menu_name = '%s' AND plid = %d AND hidden = 0" . $where, $item['menu_name'], $item['plid'], $item['mlid'], 0, 1));
     db_query("UPDATE {menu_links} SET has_children = %d WHERE mlid = %d", $parent_has_children, $item['plid']);
 
   }