clear previous contributors

Author: davidwilby

Diff for: .all-contributorsrc

@@ -7,18 +7,5 @@
   "commitType": "docs",
   "commitConvention": "angular",
   "contributorsPerLine": 7,
-  "contributors": [
-    {
-      "login": "davidwilby",
-      "name": "David Wilby",
-      "avatar_url": "https://avatars.githubusercontent.com/u/24752124?v=4",
-      "profile": "http://davidwilby.dev",
-      "contributions": [
-        "ideas",
-        "code",
-        "content",
-        "maintenance"
-      ]
-    }
-  ]
+  "contributors": []
 }