Remove hybi sub directory for WebSocket layout tests

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

 function runTests()
 {
     try {
         var url = 'ws://localhost:8880/workers/resources/simple';
         var ws = new WebSocket(url);
 
         ws.onopen = function()
         {
             postMessage('PASS: worker: Connected.');
         };
@@ skipping 10 matching lines @@
             postMessage('DONE');
         };
     } catch (e) {
         postMessage('FAIL: worker: Unexpected exception: ' + e);
     } finally {
         postMessage('PASS: worker: Parsed successfully.');
     }
 }
 
 runTests();