Revert "Adapt system test to 5.3"

This reverts commit 4b05477.

tests/System/integration/site/components/com_contact/Router.cy.js

@@ -1,7 +1,7 @@
 describe('Test in frontend that the contact site router', () => {
   it('can process contact without a menu item', () => {
     cy.db_createContact({ name: 'Test Contact', alias: 'test-contact-router' }).then((contact) => {
-      cy.request({ url: `/index.php?option=com_contact&view=contact&id=${contact.id}&catid=${contact.catid}`, followRedirect: false }).then((response) => {
+      cy.request({ url: `/index.php?option=com_contact&view=contact&id=${contact.id}`, followRedirect: false }).then((response) => {
         expect(response.status).to.eq(301);
         expect(response.redirectedToUrl).to.match(/\/index\.php\/component\/contact\/contact\/test-contact-router$/);
       });