Revert "added tools subdomain"

This reverts commit e6088456a1.

domains/_vercel.tools.joestar.json

@@ -1,9 +0,0 @@
-{
-    "owner": {
-        "username": "joejo-joestar",
-        "email": "joecn2704@gmail.com"
-    },
-    "records": {
-        "TXT": "vc-domain-verify=tools.joestar.is-a.dev,a42661483cd40eed3bdf"
-    }
-}

domains/tools.joestar.json

@@ -1,9 +0,0 @@
-{
-    "owner": {
-        "username": "joejo-joestar",
-        "email": "joecn2704@gmail.com"
-    },
-    "records": {
-        "CNAME": "cname.vercel-dns.com"
-    }
-}