Issue #3238915: Refactor (if feasible) uses of the jQuery ready function to use VanillaJS

core/modules/mysql/src/Driver/Database/mysql/Schema.php

@@ -673,46 +673,6 @@ public function getComment($table, $column = NULL) {
     return preg_replace('/; InnoDB free:.*$/', '', $comment);
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  public function tableExists($table) {
-    // The information_schema table is very slow to query under MySQL 5.0.
-    // Instead, we try to select from the table in question.  If it fails,
-    // the most likely reason is that it does not exist. That is dramatically
-    // faster than using information_schema.
-    // @link http://bugs.mysql.com/bug.php?id=19588
-    // @todo This override should be removed once we require a version of MySQL
-    //   that has that bug fixed.
-    try {
-      $this->connection->queryRange("SELECT 1 FROM {" . $table . "}", 0, 1);
-      return TRUE;
-    }
-    catch (\Exception $e) {
-      return FALSE;
-    }
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function fieldExists($table, $column) {
-    // The information_schema table is very slow to query under MySQL 5.0.
-    // Instead, we try to select from the table and field in question. If it
-    // fails, the most likely reason is that it does not exist. That is
-    // dramatically faster than using information_schema.
-    // @link http://bugs.mysql.com/bug.php?id=19588
-    // @todo This override should be removed once we require a version of MySQL
-    //   that has that bug fixed.
-    try {
-      $this->connection->queryRange("SELECT $column FROM {" . $table . "}", 0, 1);
-      return TRUE;
-    }
-    catch (\Exception $e) {
-      return FALSE;
-    }
-  }
-
 }
 
 /**