minor #731 Remove explicit var-dumper (garak)

This PR was squashed before being merged into the master branch (closes #731).

Discussion
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Remove explicit var-dumper

If you require symfony/profiler-pack, there's no need to require symfony/var-dump (that is required by symfony/web-profiler-bundle, that is required by symfony/profiler-pack)

Commits
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45ca70d Remove explicit var-dumper

Author: javiereguiluz

composer.json

@@ -37,7 +37,6 @@
         "symfony/dotenv": "^4.0",
         "symfony/phpunit-bridge": "^4.0",
         "symfony/profiler-pack": "^1.0",
-        "symfony/var-dumper": "^4.0",
         "symfony/web-server-bundle": "^4.0"
     },
     "config": {