code: public function unquoteSimpleTableName($name)
      {
          if (is_string($this->tableQuoteCharacter)) {
              $startingCharacter = $this->tableQuoteCharacter;
          } else {
              $startingCharacter = $this->tableQuoteCharacter[0];
          }
          return strpos($name, $startingCharacter) === false ? $name : substr($name, 1, -1);
      }
docs: Unquotes a simple table name.
  A simple table name should contain the table name only without any schema prefix.
  If the table name is not quoted, this method will do nothing.
  @param string $name table name.
  @return string unquoted table name.
  @since 2.0.14