chore: remove mark.is-a.dev

domains/mark.json

@@ -1,11 +0,0 @@
-{
-    "description": "Makr Davydov is a Developer!",
-    "repo": "https://github.com/markrity",
-    "owner": {
-        "username": "markrity",
-        "email": "markrity@gmail.com"
-    },
-    "record": {
-        "URL": "https://www.linkedin.com/in/davydovmark"
-    }
-}