refactor: Remove the sortable_date for talks

Automatically calculate the sortable date for a talk using the event dates. This means that the `sortable_date` in the YAML front matter can be removed. Fixes #4
2021-09-08 23:47:14 +01:00 · 2021-09-08 23:47:14 +01:00 · efbd099515
commit efbd099515
parent 42e0ae1297
36 changed files with 30 additions and 34 deletions
--- a/source/_talks/tdd-test-driven-drupal.md
+++ b/source/_talks/tdd-test-driven-drupal.md
@ -63,7 +63,6 @@ events:
        date: 2020-12-08
        url: https://events.drupal.org/europe2020/sessions/tdd-test-driven-drupal
        online: true
-sortable_date: 2020-12-08
 ---

 {% block content %}