tls: use `.destroy(err)` instead of destroy+emit

Emit errors using `.destroy(err)` instead of `.destroy()` and
`.emit('error', err)`. Otherwise `close` event is emitted with the
`error` argument set to `false`, even if the connection was torn down
because of the error.

See: https://github.com/nodejs/io.js/issues/1119
PR-URL: https://github.com/nodejs/io.js/pull/1711


Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>