Skip flaky test in e2e/elements/classes-pane.test.ts

Bug: 465727841
Change-Id: I9130c2323ba96c475b1dbc0d675ee597e250cc63
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/7411943
Reviewed-by: Paul Irish <paulirish@chromium.org>
Commit-Queue: Paul Irish <paulirish@chromium.org>
Auto-Submit: Connor Clark <cjamcl@chromium.org>

Author: Connor Clark

test/e2e/elements/classes-pane.test.ts

@@ -41,7 +41,8 @@ describe('The Classes pane', () => {
     await assertSelectedNodeClasses(['off'], devToolsPage);
   });
 
-  it('removes the previewed classes on ESC', async ({devToolsPage, inspectedPage}) => {
+  // Flaky test.
+  it.skip('[crbug.com/465727841] removes the previewed classes on ESC', async ({devToolsPage, inspectedPage}) => {
     await inspectedPage.goToResource('elements/simple-styled-page.html');
     await toggleClassesPane(devToolsPage);