Remove redundant sleep from playwright test (#12667)

Nobody seems to know why this is here. Let's get rid of it and see what
happens.

playwright/e2e/crypto/verification.spec.ts

@@ -40,8 +40,6 @@ test.describe("Device verification", () => {
         // Visit the login page of the app, to load the matrix sdk
         await page.goto("/#/login");
 
-        await page.pause();
-
         // wait for the page to load
         await page.waitForSelector(".mx_AuthPage", { timeout: 30000 });
 
@@ -54,8 +52,6 @@ test.describe("Device verification", () => {
         aliceBotClient.setCredentials(credentials);
         const mxClientHandle = await aliceBotClient.prepareClient();
 
-        await page.waitForTimeout(20000);
-
         expectedBackupVersion = await mxClientHandle.evaluate(async (mxClient) => {
             return await mxClient.getCrypto()!.getActiveSessionBackupVersion();
         });