chore: remove usman.is-a.dev

domains/usman.json

@@ -1,11 +0,0 @@
-{
-    "description": "Usman's personal developer website",
-    "repo": "https://github.com/umahmood21",
-    "owner": {
-        "username": "umahmood21",
-        "email": "umahmood214@gmail.com"
-    },
-    "record": {
-        "CNAME": "umahmood.me"
-    }
-}