minor #2264 [Autocomplete] Remove unused "symfony/security-csrf" dev dependency (smnandre)

This PR was merged into the 2.x branch.

Discussion
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[Autocomplete] Remove unused "symfony/security-csrf" dev dependency

Spotted by `@nicolas`-grekas in #2251

Commits
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64453556 [Autocomplete] Remove unused "symfony/security-csrf" dev dependency

Author: javiereguiluz

composer.json

@@ -44,7 +44,6 @@
         "symfony/phpunit-bridge": "^6.3|^7.0",
         "symfony/process": "^6.3|^7.0",
         "symfony/security-bundle": "^6.3|^7.0",
-        "symfony/security-csrf": "^6.3|^7.0",
         "symfony/twig-bundle": "^6.3|^7.0",
         "symfony/uid": "^6.3|^7.0",
         "twig/twig": "^2.14.7|^3.0.4",