Merge pull request #10 from localheinz/fix/phpunit

Fix: Remove phpunit/phpunit

Author: localheinz

composer.json

@@ -6,7 +6,6 @@
     "ext-simplexml" : "*"
   },
   "require-dev" : {
-    "phpunit/phpunit" : "^7.0",
     "friendsofphp/php-cs-fixer": "^2.16.1"
   },
   "authors" : [