remove flaky cloudwatch test (#45800)

* remove flaky cloudwatch test

* remove unused code that was only in flaking test

* okay i guess they're both flaky

* Skip flaking templating-dashboard-links-and-variables test

e2e/dashboards-suite/templating-dashboard-links-and-variables.spec.ts

@@ -5,7 +5,7 @@ e2e.scenario({
   itName: 'Tests dashboard links and variables in links',
   addScenarioDataSource: false,
   addScenarioDashBoard: false,
-  skipScenario: false,
+  skipScenario: true, // Skipped because it was causing many failures in main.
   scenario: () => {
     e2e.flows.openDashboard({ uid: 'yBCC3aKGk' });
     e2e()