Remove admin_notifications field

This field is never used.

Signed-off-by: Rémi Duraffort <remi.duraffort@linaro.org>
15 jobs for <span class="ref-name">admin_notifications</span> in 13 minutes and 37 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #31542
amd64
dispatcher-debian-10

00:04:10

passed #31540
amd64
dispatcher-debian-9

00:03:58

passed #31543
amd64
server-debian-10

00:03:24

passed #31541
amd64
server-debian-9

00:03:49

 
  Analyze
passed #31544
amd64
black

00:00:46

passed #31546
amd64
code_quality

00:00:32

passed #31545
amd64
codestyle

00:00:50

passed #31549
amd64
job-schema

00:01:47

passed #31547
amd64
pylint

00:02:30

passed #31548
dind amd64 allowed to fail
sast

00:03:02

 
  Build
passed #31552
amd64
amd64/pkg-debian-10

00:02:21

passed #31551
amd64
amd64/pkg-debian-9

00:02:25

passed #31550
amd64
doc

00:01:55

 
  Docker
passed #31553
dind amd64
amd64/lava-dispatcher

00:01:46

passed #31554
dind amd64
amd64/lava-server

00:03:01