This removes even dummy annotations from the code.

Triggered by @tbeu 's  reported
[feature request for the ttws script](https://github.com/dietmarw/trimtrailingwhitespaces/issues/12)
I ran some tests after implementing those and used also your lib
as "guinea pig". So why not putting the cleaned up result in a
pull request :-)

If you prefer to remove the cruft just before the release (as Dymola is more than willing to introduce some of it again when writing models out to disk) feel free to use the [ttws script](https://github.com/dietmarw/trimtrailingwhitespaces) yourself (but better wait for the official 0.5 release first).