Remove hybi sub directory for WebSocket layout tests

LayoutTests/http/tests/websocket/workers/resources/close-in-worker.js

 if (self.postMessage)
     runTests();
 else
     onconnect = handleConnect;
 
 function handleConnect(event)
 {
     // For shared workers, create a faux postMessage() API to send message back to the parent page.
     self.postMessage = function (message) { event.ports[0].postMessage(message); };
     runTests();
@@ skipping 16 matching lines @@
         ws.onclose = function() {
             postMessage("PASS: worker: Closed.");
             postMessage("DONE");
         };
     } catch (e) {
         postMessage("FAIL: worker: Unexpected exception: " + e);
     } finally {
         postMessage("PASS: worker: successfullyParsed:" + ws);
     }
 };