…ommand (Houssem)

This PR was merged into the 4.4 branch.

Discussion
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[FrameworkBundle] fix bad help message in cache warmup command

| Q             | A
| ------------- | ---
| Branch?       |  4.4 for bug fixes <!-- see below -->
| Bug fix?      | yes
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tickets       | Fix #47380 <!-- prefix each issue number with "Fix #", no need to create an issue if none exist, explain below instead -->
| License       | MIT
| Doc PR        | symfony/symfony-docs#... <!-- required for new features -->
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This feature was removed years ago due to providing no benefit on PHP 7+

Commits
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72afc77 fix bad help message in cache warmup command