chore: remove extension code (#667)

src/program.ts

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import { Option, program } from 'commander';
+import { program } from 'commander';
 // @ts-ignore
 import { startTraceViewerServer } from 'playwright-core/lib/server';
 
@@ -22,7 +22,6 @@ import { startHttpServer, startHttpTransport, startStdioTransport } from './tran
 import { resolveCLIConfig } from './config.js';
 import { Server } from './server.js';
 import { packageJSON } from './package.js';
-import { startCDPRelayServer } from './cdpRelay.js';
 
 program
     .version('Version ' + packageJSON.version)
@@ -53,22 +52,15 @@ program
     .option('--user-data-dir <path>', 'path to the user data directory. If not specified, a temporary directory will be created.')
     .option('--viewport-size <size>', 'specify browser viewport size in pixels, for example "1280, 720"')
     .option('--vision', 'Run server that uses screenshots (Aria snapshots are used by default)')
-    .addOption(new Option('--extension', 'Allow connecting to a running browser instance (Edge/Chrome only). Requires the \'Playwright MCP\' browser extension to be installed.').hideHelp())
     .action(async options => {
       const config = await resolveCLIConfig(options);
       const httpServer = config.server.port !== undefined ? await startHttpServer(config.server) : undefined;
-      if (config.extension) {
-        if (!httpServer)
-          throw new Error('--port parameter is required for extension mode');
-        // Point CDP endpoint to the relay server.
-        config.browser.cdpEndpoint = await startCDPRelayServer(httpServer);
-      }
 
       const server = new Server(config);
       server.setupExitWatchdog();
 
       if (httpServer)
-        await startHttpTransport(httpServer, server);
+        startHttpTransport(httpServer, server);
       else
         await startStdioTransport(server);