Cleanup inspector test expectations

LayoutTests/http/tests/inspector/websocket/websocket-handshake-expected.txt

 PASS successfullyParsed is true
 
 TEST COMPLETE
 onopen
 Tests that WebSocket handshake information is passed to Web Inspector.
 
 log: 
 log: requestMethod: GET
 log: requestHeaders
 log:     Accept-Encoding: gzip,deflate
 log:     Accept-Language: en-us,en
 log:     Cache-Control: no-cache
 log:     Connection: Upgrade
 log:     Host: localhost:8880
-log:     Origin: http://127.0.0.1:8000/
+log:     Origin: http://127.0.0.1:8000
 log:     Pragma: no-cache
 log:     Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits
 log:     Sec-WebSocket-Key: ***
 log:     Sec-WebSocket-Version: 13
 log:     Upgrade: websocket
 log:     User-Agent: ***
 log: requestHeadersText (first line): GET ws://localhost:8880/duplicated-headers HTTP/1.1
 log: statusCode: 101
 log: statusText: Switching Protocols
 log: responseHeaders
 log:     Connection: Upgrade
 log:     Sec-WebSocket-Accept: ***
 log:     Upgrade: websocket
 log:     foo: FUGA
 log:     foo: bar, baz
 log:     foo: hoge
 log:     xxx: yyy
 log: responseHeadersText (first line): HTTP/1.1 101 Switching Protocols