diff --git a/composer.json b/composer.json
index d1dbd34..4c70ed9 100644
--- a/composer.json
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@@ -20,8 +20,7 @@
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diff --git a/composer.lock b/composer.lock
index 5abd417..c003ae1 100644
--- a/composer.lock
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@@ -197,68 +127,6 @@
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@@ -348,192 +216,6 @@
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-            "time": "2020-01-10T06:32:59+00:00"
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@@ -583,52 +265,6 @@
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@@ -676,55 +312,6 @@
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@@ -790,83 +377,7 @@
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@@ -938,134 +449,6 @@
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+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-php73/zipball/4b0e2222c55a25b4541305a053013d5647d3a25f",
+                "reference": "4b0e2222c55a25b4541305a053013d5647d3a25f",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.13-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php73\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ],
+                "classmap": [
+                    "Resources/stubs"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 7.3+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "time": "2019-11-27T16:25:15+00:00"
+        },
+        {
+            "name": "symfony/process",
+            "version": "v5.0.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/process.git",
+                "reference": "f9ffd870f5ac01abec7b2b5e15f904ca9400ecd1"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/process/zipball/f9ffd870f5ac01abec7b2b5e15f904ca9400ecd1",
+                "reference": "f9ffd870f5ac01abec7b2b5e15f904ca9400ecd1",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.2.5"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "5.0-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Process\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony Process Component",
+            "homepage": "https://symfony.com",
+            "time": "2020-01-09T09:53:06+00:00"
         },
         {
             "name": "symfony/stopwatch",
diff --git a/grumphp.yml b/grumphp.yml
deleted file mode 100644
index dfa6ef3..0000000
--- a/grumphp.yml
+++ /dev/null
@@ -1,6 +0,0 @@
-parameters:
-    git_dir: .
-    bin_dir: vendor/bin
-    tasks:
-        phpcsfixer2:
-            config: .php_cs.dist