Remove license checks from app/views/shared/issuable/_bulk_update_sidebar.html.haml

We should remove license checks in app/views/shared/issuable/_bulk_update_sidebar.html.haml because these should only be done in EE.

Right now, these don't cause a failure because a workaround is done where we check the license on the parent group.

This can cause bugs though, like on this line:

bulk_issue_health_status_flag = type == :issues && @project&.group&.feature_available?(:issuable_health_status)

This means projects under personal namespaces that have the health status feature won't see this.

We also can't use project.feature_available? because it will lead to failures like #300520 (closed).

Since these flags are only used in conditionals for rendering certain HAML blocks, we should move these into EE partials and then use render_if_exists.

cc @caalberts