Removed enso-types and a some unused dependencies.

[mwu-tow]

Pull Request Description

Removed enso-types crate which had only one reference in unused part of the code. Removed some unused dependencies from Cargo.toml files.

Important Notes

CI has a similar hiccup as before. Please disregard this for now in the review.

Checklist

Please ensure that the following checklist has been satisfied before submitting the PR:

• The documentation has been updated, if necessary.
• Screenshots/screencasts have been attached, if there are any visual changes. For interactive or animated visual changes, a screencast is preferred.
• All code follows the
  Scala,
  Java,
  and
  Rust
  style guides. In case you are using a language not listed above, follow the Rust style guide.
• All code has been tested:
  • Unit tests have been written where possible.
  • If GUI codebase was changed, the GUI was tested when built using ./run ide build.

[kazcw]

LGTM if tests pass