GitLab

Content packs feature for supervised users has never been
launched - deprecate the code.

Bug: 1149788
Change-Id: Ifdb8db5d7c5c482d74c8419e74ef540a000b1fde
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2551816
Commit-Queue: Aga Wronska <agawronska@chromium.org>
Reviewed-by: Marc Treib <treib@chromium.org>
Cr-Commit-Position: refs/heads/master@{#833530}