Calendar: remove past events.

wiki/src/contribute/calendar.mdwn

@@ -4,14 +4,6 @@ All times are referenced to Berlin and Paris time.
 
 # 2020 Q2
 
-* 2020-04-06, 16:00: Foundations Team meeting
-
-* 2020-04-07: **Release 4.5** (Firefox 68.7, major release; kibi is the RM, anonym is the TR)
-
-  - Extra manual tests, if this release includes [[!tails_ticket 15806
-    desc="GRUB"]]: EFI 64-bit upgrades from syslinux to GRUB
-  - Automatic upgrade from 4.2 and newer (with overlayfs-based diff).
-
 * 2020-04-16, 16:00: Fundraising Team meeting
 
 * 2020-04-18, 16:00: Accounting Team meeting