CircleCI: drop building d16 which causes build issues with changes to CircleCI to build for t480. Delegating needed fixes to linuxboot#1910 community effort and for the d16 club d16 board owners

Signed-off-by: Thierry Laurion <insurgo@riseup.net>

Author: tlaurion

.circleci/config.yml

@@ -543,35 +543,3 @@ workflows:
           requires:
             - x230-hotp-maximized
 
-      # coreboot 4.11
-      - build:
-          name: UNMAINTAINED_kgpe-d16_workstation
-          target: UNMAINTAINED_kgpe-d16_workstation
-          subcommand: ""
-          requires:
-            - librem_l1um
-
-      # coreboot 4.11
-      - build:
-          name: UNMAINTAINED_kgpe-d16_workstation-usb_keyboard
-          target: UNMAINTAINED_kgpe-d16_workstation-usb_keyboard
-          subcommand: ""
-          requires:
-            - librem_l1um
-
-      # coreboot 4.11
-      - build:
-          name: UNMAINTAINED_kgpe-d16_server
-          target: UNMAINTAINED_kgpe-d16_server
-          subcommand: ""
-          requires:
-            - librem_l1um
-
-      # coreboot 4.11
-      - build:
-          name: UNMAINTAINED_kgpe-d16_server-whiptail
-          target: UNMAINTAINED_kgpe-d16_server-whiptail
-          subcommand: ""
-          requires:
-            - librem_l1um
-