drop cursor-team-kit from guide 05 #36

docs/guide/05-build-and-clean.md line 59 names cursor-team-kit (checked at 66a5d86):

/deslop ships in the cursor-team-kit plugin, not in pstack. If you don't have it, ask for the same outcome in plain words: remove narrating comments, unsupported guards, dead compatibility paths, and unrelated edits.

Upstream pstack at e73df47 has the same text at pstack/docs/guide/05-build-and-clean.md line 59. The no-mention rule overrides copying upstream verbatim here.

Smallest fix: delete those two sentences from the end of line 59, so the paragraph ends after "...to the PR description and commit bodies." Once #32 lands, /deslop is a pstack skill and the fallback is not needed.

This comes from Kaitian's 2026-10-26 embedded team-kit rule: every port ships deslop, control-cli, and control-ui as ordinary skills inside its pstack plugin, and never mentions cursor-team-kit.

The fix PR should say Closes #N for this issue.