Revert "Render dates as headings"
Revert "Render dates as headings"

This reverts commit c2bb2a8fb458456a322716e82d5ed20c9451d5a0.

Change-Id: I1f6f71c0e7b397c3adf1629b78d52154cfbdfc20

wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo