test: remove waiting for DevTools page (#1793)

Author: Lightning00Blade

tests/McpContext.test.ts

@@ -89,10 +89,6 @@ describe('McpContext', () => {
     await withMcpContext(
       async (_response, context) => {
         const page = await context.newPage();
-        // TODO: we do not know when the CLI flag to auto open DevTools will run
-        // so we need this until
-        // https://github.com/puppeteer/puppeteer/issues/14368 is there.
-        await new Promise(resolve => setTimeout(resolve, 5000));
         await context.createPagesSnapshot();
         assert.ok(context.getDevToolsPage(page.pptrPage));
       },