Use ES6 code

Author: awgeorge

src/Controllers/DatabaseController.js

@@ -1439,9 +1439,7 @@ class DatabaseController {
     [...(auth.userRoles || [])].forEach(role => {
       const fields = protectedFields[role];
       if (fields) {
-        protectedKeys = protectedKeys.filter(
-          value => -1 !== fields.indexOf(value)
-        );
+        protectedKeys = protectedKeys.filter(v => fields.includes(v));
       }
     });