function unlinkSync( path ) {
	try {
		unlink( path );
	} catch ( err ) {
		return err;
	}
	return null;
}
Synchronously removes a directory entry.

@param {(string|Buffer|integer)} path - path
@returns {(Error|null)} error object or null

@example
var err = unlinkSync( './beep/boop.txt' );
if ( err instanceof Error ) {
    throw err;
}