Libraries should not be loaded if their deps are removed

Problem/Motivation

I've had to remove certain libraries from the front end as they error out because of require.js (which has been a total nightmare that we're trying to move away from). I used libraries-override to remove core/tabbable (from core.libraries.yml) because it was throwing errors.

Got some errors today because tabble.jquery.shim (also core.libraries.yml) is being loaded, which depends on tabbable.

Library config for tabbable.jquery.shim from core.libaries.yml:

tabbable.jquery.shim:
  version: VERSION
  js:
    misc/jquery.tabbable.shim.js: {}
  dependencies:
    - core/drupal
    - core/tabbable
    - core/jquery

Seems like if a dependency of a library is removed that the library should not be loaded, and ideally a warning is logged.

Steps to reproduce

In a theme, add:

libraries-override:
  core/tabbable: false

Then add under libraries:

libararies:
  core/tabbable.jquery.shim

This will load tabbable.jquery.shim even though core/tabbable is a dep that has been removed.

Proposed resolution

If a library is removed, any library depending on it should not be loaded.

Remaining tasks

User interface changes

API changes

Data model changes

Release notes snippet