fix(authorization): use simplified if-branch to check for body allow value

Author: jankapunkt

lib/handlers/authorize-handler.js

@@ -77,12 +77,7 @@ AuthorizeHandler.prototype.handle = function(request, response) {
     throw new InvalidArgumentError('Invalid argument: `response` must be an instance of Response');
   }
 
-  const notAllowed = [
-    request.query.allowed,
-    request.body.allowed
-  ].some(allowed => 'false' === allowed);
-
-  if (notAllowed) {
+  if (request.query.allowed === 'false' || request.body.allowed === 'false') {
     return Promise.reject(new AccessDeniedError('Access denied: user denied access to application'));
   }