Remove Cory Booker. (#113)

Author: alex

config/us.json

@@ -352,11 +352,6 @@
             "name": "2020 Democratic Presidential Candidates",
             "linkname": "democratic-candidates-2020",
             "sites": [
-                {
-                    "name": "Cory Booker",
-                    "domain": "corybooker.com",
-                    "twitter": "CoryBooker"
-                },
                 {
                     "name": "Pete Buttigieg",
                     "domain": "www.peteforamerica.com",