fixup TODOs in Deprecated.js

[abmusse]

There a few lingering TODOs in Deprecated.js.

For example there are commented duplicate keys for output objects:

...
            // Reserved: data[27]._, // TODO: duplicate key
...

I'm not sure there is much use returning the Reserved keys anyway because there are always undefined. We should probably remove these.

The other TODO is with work.getSysValue I noticed there is a silent return here when the system value is not found in the sysvalArray.

[kadler]

You can't remove reserved fields, because they are needed to keep the layout correct in a packed data structure

You can remove the name from them, though

[abmusse]

OK what I meant was removing it from the object that gets returned to the user.

[kadler]

Oh right, these are the higher-level wrappers. Yep, makes sense to not return the useless data to the user in that case.