CE-2450: Remove unstable test

The test for TokenRenew has been failing intermittently for
an extended time period. Seeing as this is a QoL feature, and
considering the fact that we are replacing our auth provider
(to Ping), we may as well remove the test.

src/components/auth/TokenRenew/TokenRenew.spec.js

-import { SnackbarProvider } from "notistack";
-import React from "react";
-import { UserProvider } from "../../../api/UserProvider";
-import TokenRenew from ".";
-import { DeployAPIProvider } from "../../../api/DeployApi";
-
-function AppHarness({ children }) {
-  return (
-    <SnackbarProvider
-      preventDuplicate
-      maxSnack="5"
-    >
-      <DeployAPIProvider>
-        <UserProvider>{children}</UserProvider>
-      </DeployAPIProvider>
-    </SnackbarProvider>
-  );
-}
-
-function mountIntoHarness(children) {
-  cy.mount(<AppHarness>{children}</AppHarness>);
-}
-
-describe("TokenRenew", () => {
-  context("when logged in", () => {
-    beforeEach(() => {
-      cy.login();
-    });
-
-    it("renews the token periodically", () => {
-      cy.clock();
-      mountIntoHarness(<TokenRenew />);
-      cy.tick(window.TOKEN_RENEW_INTERVAL);
-      cy.wait("@renew", { responseTimeout: 1000 });
-      cy.getCookie("ce-deploy-auth").should(
-        "have.property",
-        "value",
-        "FADEDEAD"
-      );
-    });
-  });
-});