Remove duplicated blockToMenuItem function

[adamziel]

Description

The blockToMenuItem lives in the edit-navigation package, but also in the block-library.

It would be great to remove the duplicate code and have only one copy of that function.

Block library seems to only use it to create a placeholder. Perhaps we could remove it from there? Do the blocks need to know about the underlying data model?

cc @getdave

[getdave]

Yup. That's what I was looking at in #31580.

Do the blocks need to know about the underlying data model?

I don't know the answer to that at the moment. Happy to discuss.

[Mamaduka]

Closing the issue since the editor is no longer maintained and has been removed from the project.