debian: remove dependencies to unused jquery libs

We don't use anymore:
* jquery-cookie
* jquery-ui
* jquery-watermark

Reported-by: Fathi Boudra <fathi.boudra@linaro.org>
Signed-off-by: Rémi Duraffort <remi.duraffort@linaro.org>
15 jobs from libjs in 17 minutes and 10 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #32519
amd64
dispatcher-debian-10

00:03:43

passed #32517
amd64
dispatcher-debian-9

00:03:40

passed #32520
amd64
server-debian-10

00:03:20

passed #32518
amd64
server-debian-9

00:03:20

 
  Analyze
passed #32521
amd64
black

00:00:53

passed #32523
amd64
code_quality

00:00:34

passed #32522
amd64
codestyle

00:00:55

passed #32526
amd64
job-schema

00:01:16

passed #32524
amd64
pylint

00:02:59

passed #32525
dind amd64 allowed to fail
sast

00:05:58

 
  Build
passed #32529
amd64
amd64/pkg-debian-10

00:02:06

passed #32528
amd64
amd64/pkg-debian-9

00:02:37

passed #32527
amd64
doc

00:02:07

 
  Docker
passed #32530
dind amd64
amd64/lava-dispatcher

00:01:36

passed #32531
dind amd64
amd64/lava-server

00:03:51