Remove incorrect "open enhanced commissioning window" UI on M5Stack.

[bzbarsky-apple]

The option doesn't actually open an enhanced commissioning window. It
opens a basic one, but then advertises as if it opened an enhanced
one, sort of. This is not actually usable/useful, as far as I can
tell.

Problem

UI was accidentally added as part of a build fix in #9114 that does not do what it says it does.

Change overview

Just remove the new UI.

Testing

Looked at M5Stack screen, option is gone.

[github-actions]

Size increase report for "esp32-example-build" from f0c70d3

File	Section	File	VM
chip-shell.elf	.flash.text	-48	-48

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-temperature-measurement-app.elf and ./pull_artifact/chip-temperature-measurement-app.elf:

sections,vmsize,filesize

Comparing ./master_artifact/chip-bridge-app.elf and ./pull_artifact/chip-bridge-app.elf:

sections,vmsize,filesize

Comparing ./master_artifact/chip-persistent-storage.elf and ./pull_artifact/chip-persistent-storage.elf:

sections,vmsize,filesize

Comparing ./master_artifact/chip-shell.elf and ./pull_artifact/chip-shell.elf:

sections,vmsize,filesize
[Unmapped],0,48
.flash.text,-48,-48

Comparing ./master_artifact/chip-all-clusters-app.elf and ./pull_artifact/chip-all-clusters-app.elf:

sections,vmsize,filesize

Comparing ./master_artifact/chip-ipv6only-app.elf and ./pull_artifact/chip-ipv6only-app.elf:

sections,vmsize,filesize

Comparing ./master_artifact/chip-pigweed-app.elf and ./pull_artifact/chip-pigweed-app.elf:

sections,vmsize,filesize

Comparing ./master_artifact/chip-lock-app.elf and ./pull_artifact/chip-lock-app.elf:

sections,vmsize,filesize