lib/Github/Api/Issue/Labels.php
public function remove($username, $repository, $issue, $label)
    {
        return $this->delete('/repos/'.rawurlencode($username).'/'.rawurlencode($repository).'/issues/'.rawurlencode($issue).'/labels/'.rawurlencode($label));
    }
public function remove($username, $repository, $issue, $label)
    {
        return $this->delete('/repos/'.rawurlencode($username).'/'.rawurlencode($repository).'/issues/'.rawurlencode($issue).'/labels/'.rawurlencode($label));
    }
public function remove ( $ username , $ repository , $ issue , $ label ) { return $ this -> delete ( '/repos/' . rawurlencode ( $ username ) . '/' . rawurlencode ( $ repository ) . '/issues/' . rawurlencode ( $ issue ) . '/labels/' . rawurlencode ( $ label ) ) ; }
Remove a label for an issue.

@link https://developer.github.com/v3/issues/labels/#remove-a-label-from-an-issue

@param string $username
@param string $repository
@param string $issue
@param string $label

@return array|string
Remove a label for an issue .