chore: make Node setup script less sensitive to changes (#22855)
This change tweaks the Node setup script less sensitive to changes by
removing the test counter line in `tools/node_compat/TODO.md`.
Previously, this line would cause linting issues when two Node compat
changes occured one after another.
See
https://github.com/denoland/deno/actions/runs/8226735149/job/22493585874
Signed-off-by: Asher Gomez <ashersaupingomez@gmail.com>
