disabling codeclimate linting

Codeclimate doesn't support XO, we would have to maintain a separate
eslint config and keep it in sync with XO to get it to work properly.
Currently many files just have parse errors becuase the current config
doesn't like our ES6-isms like async and spread.

Since we already do linting as part of the CI build, I think this is safe to turn off.

.codeclimate.yml

@@ -11,14 +11,7 @@ engines:
       - python
       - php
   eslint:
-    enabled: true
-    checks:
-      global-require:
-        enabled: false
-      comma-dangle:
-        enabled: false
-      semi:
-        enabled: false
+    enabled: false
   fixme:
     enabled: true
 ratings: