**Acceptance criteria**

* Begin of the deletion [ ]End of the deletion Remove the Enterprise token from the multi-select for all custom fields.
* Begin of the deletion [ ]End of the deletion Remove the Enterprise banner from the "New custom field" creation flow in the administration settings.
* Begin of the deletion [ ] Remove the references to the multi-select custom fields being an enterprise add-on from the docs.
* [ ] Remove the multi-select custom fields from the list of Enterprise add-ons in the pricing web page.
* [ ]End of the deletion Adapt tests to no longer test for enterprise token existence
* Begin of the deletion [ ]End of the deletion Remove any superfluous en.yml translation keys Begin of the insertion

**Subtasks**

* ##47851
* ##47852End of the insertion