test: drop skipDeployment where another gate already excludes deploy (#99194)
## Summary
Eleven suites carry `skipDeployment` on top of a condition that already
keeps them out of deploy mode, so the option is dead weight.
Each was run in deploy on the #99184–#99187 batches with the exclusion
removed, and each reported green in roughly **2.4s** — the signature of
a suite that registered no tests, not one that deployed and passed. So
removing the option is behaviour-neutral.
It also removes the `it.only` that `skipDeployment` registers, which
focuses the whole *file* and can silently skip unrelated suites beside
it.
## Why each genuinely cannot run against a deployment
| suite | blocker |
|---|---|
| `app-action-export`, `invalid-custom-routes`,
`invalid-middleware-matchers` | mutate fixture files after setup
(`patchFile` / `deleteFile`), then rebuild |
| `instant-validation-build`, `externals-pages-bundle` | call
`next.build()` and read the local build output |
| `telemetry/config`, `telemetry/page-features`, `telemetry/telemetry` |
telemetry events are emitted by the local CLI process |
| `cpu-profiling-build` | reads `.next-profiles` off disk, and already
returns early on `isNextDeploy` |
| `back-button-download-bug`, `next-test` | the whole suite is
`describe.skip`, for reasons unrelated to deployment |
## Not in this PR
From the same set of 19, four look like the *gating* is wrong rather
than the exclusion being correct, and they need their own change plus a
deploy run:
- `typescript-version-warning` and `typescript-version-no-warning` use
only `next.start` and `next.cliOutput`, and assert on build output that
deploy does provide. They are excluded by an explicit `if (isNextDeploy
|| isNextDev)` that reads as caution rather than a finding.
- `url-imports` uses only `render` and `browser`. Its `describe.skip` is
Turbopack-specific and legitimate, so it needs the webpack deploy job
rather than a code change.
- `webpack-loader-parse-error` is already being enabled in #98850.
And `invalid-module-document`, `undefined-webpack-config`,
`typegen-error-diagnostic`, `turbopack-emit-collect` need the
deferred-deployment-lifecycle conversion or a closer read first.
## Verification
Deploy-mode runs on #99184–#99187 (Turbopack). Confirmed per file that
canary carries one `skipDeployment` and this branch carries none, with
no other change.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
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Co-authored-by: Claude Opus 5 <noreply@anthropic.com>