Cleanup deps on var-dumper

Author: nicolas-grekas

composer.json

@@ -41,7 +41,6 @@
         "symfony/security-http": "^3.4|^4.0|^5.0",
         "symfony/stopwatch": "^3.4|^4.0|^5.0",
         "symfony/console": "^3.4|^4.0|^5.0",
-        "symfony/var-dumper": "^3.4|^4.0|^5.0",
         "symfony/expression-language": "^3.4|^4.0|^5.0",
         "symfony/web-link": "^4.4|^5.0",
         "symfony/workflow": "^4.3|^5.0",