Remove various uses of INTERNAL_ERROR

INTERNAL_ERROR now means there really was some internal error

src/routes/test/apps-test.js

@@ -432,7 +432,7 @@ describe('App API', function () {
                 .query({ access_token: token })
                 .send({ appStoreId: APP_STORE_ID, location: APP_LOCATION, domain: DOMAIN_0.domain, portBindings: null, accessRestriction: null })
                 .end(function (err, res) {
-                    expect(res.statusCode).to.equal(424);
+                    expect(res.statusCode).to.equal(402);
                     expect(fake1.isDone()).to.be.ok();
                     done();
                 });