Removed unused subdomain entry

domains/cola.json

@@ -1,11 +0,0 @@
-{
-    "owner": {
-        "username": "randomboi404",
-        "email": "aauispwujd@gmail.com",
-        "discord": "colaaaaaaaaaaaaa"
-    },
-    "records": {
-        "MX": ["mx1.improvmx.com", "mx2.improvmx.com"],
-        "TXT": ["v=spf1 include:spf.improvmx.com ~all"]
-    }
-}