Disable representer (#2537)

The representer always 500s. This is now a critical issue as it means no community solutions show, so I'm disabling it.

Author: iHiD

config.json

@@ -5,7 +5,7 @@
   "status": {
     "concept_exercises": true,
     "test_runner": true,
-    "representer": true,
+    "representer": false,
     "analyzer": false
   },
   "blurb": "Java is a very widely used Object Oriented programming language. It's safe, simple to use and portable so that you can \"write once, run anywhere\".",