Revert "[bug 966978] Add support for FxMetro in AAQ."

This reverts commit eb479285dda93dba5104fe2a7356e340ff83661f.
[bug 726941] Allow users to close their account
[bug 979582] Require auth for AoA usage.
Write l10n status files to media/uploads.
[Bug 979347] AAQ: Hide troubleshooting box.
[bug 970216] Add Top 100 and Top 50 progress bars to l10n dash.

Highlight the Top 100 (bigger bar).
[bug 979328] Fix margins below progress bar.
Refactor and cleanup answer notification tests.
[Bug 970046] Use a default reply-to address.
[Bug 970046] Reply-to notifications to Kadir.
[bug 967535] Track some Get Involved click events.
[bug 968202] Add UI strings #s and progress bar to l10n dash.
[bug 984401] Update to django-tidings master tip.
[Bug 977189] Add product/topic to question listing