Playwright: use rust crypto for the bot user (#12708)

... because legacy crypto is legacy

playwright/e2e/crypto/verification.spec.ts

@@ -45,7 +45,6 @@ test.describe("Device verification", () => {
 
         // Create a new device for alice
         aliceBotClient = new Bot(page, homeserver, {
-            rustCrypto: true,
             bootstrapCrossSigning: true,
             bootstrapSecretStorage: true,
         });

playwright/pages/bot.ts

@@ -45,10 +45,6 @@ export interface CreateBotOpts {
      * Whether to generate cross-signing keys
      */
     bootstrapCrossSigning?: boolean;
-    /**
-     * Whether to use the rust crypto impl. Defaults to false (for now!)
-     */
-    rustCrypto?: boolean;
     /**
      * Whether to bootstrap the secret storage
      */
@@ -188,11 +184,7 @@ export class Bot extends Client {
                     return cli;
                 }
 
-                if (opts.rustCrypto) {
-                    await cli.initRustCrypto({ useIndexedDB: false });
-                } else {
-                    await cli.initCrypto();
-                }
+                await cli.initRustCrypto({ useIndexedDB: false });
                 cli.setGlobalErrorOnUnknownDevices(false);
                 await cli.startClient();