diff --git a/library/includes/cron/jobs/demo_mode.php b/library/includes/cron/jobs/demo_mode.php
index aa46ac8cb..18babeb90 100644
--- a/library/includes/cron/jobs/demo_mode.php
+++ b/library/includes/cron/jobs/demo_mode.php
@@ -34,8 +34,3 @@ if (!DB()->query("DROP DATABASE " . SELECTED_DB)) {
 if (!DB()->query("CREATE DATABASE " . SELECTED_DB)) {
     return;
 }
-
-// Import sql dump from file
-if (!DB()->multi_query($sql_dump)) {
-    return;
-}
diff --git a/src/Legacy/SqlDb.php b/src/Legacy/SqlDb.php
index 6c3e473ec..70bd6176a 100644
--- a/src/Legacy/SqlDb.php
+++ b/src/Legacy/SqlDb.php
@@ -64,7 +64,7 @@ class SqlDb
         $this->do_explain = ($this->dbg_enabled && !empty($_COOKIE['explain']));
         $this->slow_time = SQL_SLOW_QUERY_TIME;
 
-        // Links to the global vairables (for recording all the logs on all servers, counting total request count and etc)
+        // Links to the global variables (for recording all the logs on all servers, counting total request count and etc)
         $this->DBS['log_file'] =& $DBS->log_file;
         $this->DBS['log_counter'] =& $DBS->log_counter;
         $this->DBS['num_queries'] =& $DBS->num_queries;
@@ -163,21 +163,6 @@ class SqlDb
         return $result;
     }
 
-    /**
-     * Performs one or more queries on the database
-     *
-     * @param $query
-     * @return mixed
-     */
-    public function multi_query($query): mixed
-    {
-        if (!$result = $this->multi_query($query)) {
-            $this->trigger_error();
-        }
-
-        return $result;
-    }
-
     /**
      * Return number of rows
      *