public function removeForRange($key, \DateTime $start, \DateTime $end)
    {
        unset($this->data[$this->keyForRange($key, $start, $end)]);
    }
public function removeForRange($key, \DateTime $start, \DateTime $end)
    {
        unset($this->data[$this->keyForRange($key, $start, $end)]);
    }
public function removeForRange ( $ key , \ DateTime $ start , \ DateTime $ end ) { unset ( $ this -> data [ $ this -> keyForRange ( $ key , $ start , $ end ) ] ) ; }
Remove value for a key for a given date range.

@param string $key Counter key.
@param \DateTime $start Start date.
@param \DateTime $end End date.
@return void
Remove value for a key for a given date range .