Removed useless twitter field

Co-authored-by: William Harrison <william@williamdavidharrison.com.au>

domains/windfarms.json

@@ -4,7 +4,6 @@
     "owner": {
         "username": "windfarms",
         "email": "windfarms@andrealicheri.anonaddy.com",
-        "twitter": "i don't have twitter"
     },
     "record": {
         "CNAME": "windfarms.github.io"