minor symfony#52310 [5.4] Remove unused test fixtures (fancyweb)

This PR was merged into the 5.4 branch.

Discussion
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[5.4] Remove unused test fixtures

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        | -
| License       | MIT

Commits
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3bf702e [5.4] Remove unused test fixtures

Author: fabpot