Update categories.js

tests/categories.js

@@ -1,5 +1,4 @@
-// this test currently needs to talk to the redis database.
-// get the redis config info from root directory's config.json:
+
 var winston = require('winston');
 
 process.on('uncaughtException', function (err) {
@@ -59,4 +58,4 @@ describe('Categories', function() {
 		db.delete('category:' + categoryObj.cid);
 		db.listRemoveLast('categories:cid');
 	});
-});
+});