Revert "manage packaged-app submission for Android and Desktop via waffle flag (bug 907203, bug 910778)"

This reverts commit a5a9b3df66dbc219702e5f3f3dd04d842cd6c9b1.
Revert "Revert "manage packaged-app submission for Android and Desktop via waffle flag (bug 907203, bug 910778)""

This reverts commit 5726ed74aa1c26ab57641086a8c557871b8b012b.