wifi: Don't translate placeholder text

Placeholder text was marked as translatable, but this is always replaced so
no need to translate it. Remove two unused tabs with translatable labels.
11 jobs for network-unused-translations in 16 minutes and 30 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #91950
build

00:01:48

 
  Test
passed #91953
armv8

00:13:49

passed #91952
asan

00:01:43

failed #91954
allowed to fail
ppc64le

00:12:49

passed #91951
test

00:00:50

 
  Manual
manual #91955
allowed to fail manual
flatpak
manual #91958
allowed to fail manual
msan
manual #91956
allowed to fail manual
tsan
manual #91957
allowed to fail manual
ubsan
 
  Review
manual #91959
allowed to fail manual
review
manual #91960
allowed to fail manual
stop_review
 
Name Stage Failure
failed
ppc64le Test
Full log written to /cwd/_build/meson-logs/testlog.txt
FAILED: meson-test
/usr/bin/python3 -u /usr/bin/meson test --no-rebuild --print-errorlogs
ninja: build stopped: subcommand failed.
Uploading artifacts...
./*.log: found 1 matching files
_build/meson-logs/: found 4 matching files
Uploading artifacts to coordinator... ok id=91954 responseStatus=201 Created token=xpH-T8Zu
ERROR: Job failed: exit code 1