code/libraries/joomlatools/library/http/message/headers.php
public function remove($key)
    {
        $key = strtr(strtolower($key), '_', '-');
        unset($this->_data[$key]);
        return $this;
    }
public function remove($key)
    {
        $key = strtr(strtolower($key), '_', '-');
        unset($this->_data[$key]);
        return $this;
    }
public function remove ( $ key ) { $ key = strtr ( strtolower ( $ key ) , '_' , '-' ) ; unset ( $ this -> _data [ $ key ] ) ; return $ this ; }
Removes a header nu name

@param string $key The HTTP header name
@return KHttpMessageHeaders
Removes a header nu name