lib/Tumblr/API/Client.php
public function deletePost($blogName, $postId, $reblogKey)
    {
        $options = array('id' => $postId, 'reblog_key' => $reblogKey);
        $path = $this->blogPath($blogName, '/post/delete');

        return $this->postRequest($path, $options, false);
    }
public function deletePost($blogName, $postId, $reblogKey)
    {
        $options = array('id' => $postId, 'reblog_key' => $reblogKey);
        $path = $this->blogPath($blogName, '/post/delete');

        return $this->postRequest($path, $options, false);
    }
Delete a post

@param string $blogName  the name of the blog the post is on
@param int    $postId    the id of the post
@param string $reblogKey the reblog_key of the post

@return array the response array