Actually drop beberlei/assert

Author: AydinHassan

composer.json

@@ -24,7 +24,6 @@
         "fzaninotto/faker": "^1.5",
         "aydin-hassan/cli-md-renderer": "^2.3",
         "php-school/cli-menu": "^4.1",
-        "beberlei/assert": "^3.2",
         "psr/http-message": "^1.0",
         "myclabs/php-enum": "^1.4",
         "kadet/keylighter": "^0.8.3",