Remove obsolete Composer config

ondrejmirtes · ondrejmirtes · commit 53601fe346aa · 2022-06-10T13:39:34.000+02:00
diff --git a/composer.json b/composer.json
@@ -21,10 +21,7 @@
         "phpunit/phpunit": "^9.5"
     },
     "config": {
-        "sort-packages": true,
-        "allow-plugins": {
-            "dealerdirect/phpcodesniffer-composer-installer": true
-        }
+        "sort-packages": true
     },
     "extra": {
         "phpstan": {
