chore: delete domain records due to takedown notice

https://github.com/open-domains/register/issues/3354

domains/kiran.is-a-fullstack.dev.json

@@ -1,13 +0,0 @@
-{
-  "description": "Personal portfolio site",
-  "domain": "is-a-fullstack.dev",
-  "subdomain": "kiran",
-  "owner": {
-    "repo": "https://github.com/thekiranmahajan/thekiranmahajan.github.io",
-    "email": "officialkiranmahajan@gmail.com"
-  },
-  "record": {
-    "CNAME": "thekiranmahajan.github.io"
-  },
-"proxied": false
-}