Remove obsolete widgets

[ajdapretnar]

Clean up Prototypes add-on.
Remove:

• Last File Capture (doesn't work)
• ModelMap Projection Rank (is implemented as Rank Projections elsewhere)
• CreateClass (is now in core Orange)

[jerneju]

If biolab/orange3#2445 is approved and merged, we might want to consider removing two other widgets as well:

• Linear Projection
• FreeViz

[PrimozGodec]

FreeViz was updated recently so I guess we leave it in prototypes? @jerneju

[ajdapretnar]

The idea is to avoid duplicate widgets (causes problems when browsing by widget name) and to keep Prototypes clean. I don't want it to be a widget junkyard. 😆 As for FreeViz, we can perhaps remove it once it is properly merged in core?

[PrimozGodec]

So I will leave it in prototypes for now. All other widgets from the list will be removed.

[jerneju]

@ajdapretnar : FreeViz is already merged in core. Linear Projection is not.

[ajdapretnar]

You are right, how did I miss this!? This requires a blog asap (well, after the release, obviously).
As for LinProj, I have it in core. You probably mean the updates to LinProj?

[jerneju]

Yes, updates.

[ajdapretnar]

Data Sets is also redundant.

[ajdapretnar]

Then for LinProj I think it depends where you are pushing the changes? If you need it in Prototypes for testing the changes, it should stay here. If you are pushing directly to core, then I vote for removing it.

[jerneju]

I am pushing changes directly to Core. As far as I'm concerned both FreeViz and Linear Projection can be removed from Prototypes.