Remove legacy Admin UI for advanced field types

[timleslie]

See #5025.

This is the first in a series of PRs to remove the views export from the legacy field types. Doing it in stages to make it reviewable and to avoid going into an uncontrolled mode.

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🦋 Changeset detected

Latest commit: caf0782

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 12 packages

Name	Type
@keystone-next/fields-auto-increment-legacy	Major
@keystone-next/fields-color-legacy	Major
@keystone-next/fields-location-google-legacy	Major
@keystone-next/fields-markdown-legacy	Major
@keystone-next/fields-mongoid-legacy	Major
@keystone-next/fields-wysiwyg-tinymce-legacy	Major
@keystone-next/adapter-knex-legacy	Patch
@keystone-next/adapter-prisma-legacy	Patch
@keystone-next/fields	Patch
@keystone-next/adapter-mongoose-legacy	Patch
@keystone-next/keystone	Patch
@keystone-next/test-utils-legacy	Patch

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