remove local package from composer requirements

composer.json

@@ -30,7 +30,6 @@
         "doctrine/doctrine-migrations-bundle": "^3.0",
         "doctrine/migrations": "^3.1",
         "doctrine/orm": "^2.7",
-        "ekyna/payum-payzen": "@dev",
         "friendsofsymfony/user-bundle": "^2.1",
         "gamez/ramsey-uuid-normalizer": "^2.1",
         "geocoder-php/cache-provider": "^4.3",