remove wifi-connector

[vilvo]

Description of changes

• addresses SP-4943 - wifi password logged in plaintext
• addresses SP-4941 - wifi-connector doesn't work
• Preferred tools:
  • graphical: use Network Settings instead
  • cli: use nmcli directly instead

Checklist for things done

• [X] Summary of the proposed changes in the PR description
• [X] More detailed description in the commit message(s)
• [X] Commits are squashed into relevant entities - avoid a lot of minimal dev time commits in the PR
• [X] Contribution guidelines followed
• [X] Ghaf documentation updated with the commit - https://tiiuae.github.io/ghaf/
• [X] PR linked to architecture documentation and requirement(s) (ticket id)
• [X] Test procedure described (or includes tests). Select one or more:
  • [X] Tested on Lenovo X1 x86_64
  • [ ] Tested on Jetson Orin NX or AGX aarch64
  • [ ] Tested on Polarfire riscv64
• [x] Author has run nix flake check --accept-flake-config and it passes
• [ ] All automatic Github Action checks pass - see actions
• [ ] Author has added reviewers and removed PR draft status

Testing

Reference target can be built without wifi-connector

[vunnyso]

LGTM tested on Lenovo X1,using nmcli can connect to connect to wifi

[milva-unikie]

Tested on Lenovo-X1 (nix build github:vilvo/ghaf/remove-wifi-connector#lenovo-x1-carbon-gen11-debug)

Everything is ok!

• wifi-connector is no longer available
• even if you try to use wifi-connector, the password is no longer logged
• nmcli works, it does log the ssid but not the password
• Network Settings works for connecting to wifi
• test-automation passes