remove urlencoded

we don't use this in our API

src/routes/appstore.js

@@ -71,8 +71,6 @@ async function registerCloudronWithLogin(req, res, next) {
 }
 
 async function getSubscription(req, res, next) {
-    assert.strictEqual(typeof req.body, 'object');
-
     const [error, result] = await safe(appstore.getSubscription());
     if (error) return next(BoxError.toHttpError(error));