function unlink( path, clbk ) {
	remove( path, clbk );
}
Asynchronously removes a directory entry.

@param {(string|Buffer|integer)} path - entry path
@param {Function} clbk - callback to invoke after removing a directory entry

@example
function done( error ) {
    if ( error ) {
        throw error;
    }
}

unlink( './beep/boop.txt', done );