test: remove unused disposed_ variable

Currently building test_inspector_socket.cc generates the following warning: ../test/cctest/test_inspector_socket.cc:189:8: warning: private field 'disposed_' is not used [-Wunused-private-field] bool disposed_ = false; ^ 1 warning generated. This commit removes this variable. PR-URL: #17628 Reviewed-By: Evan Lucas <evanlucas@me.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jon Moss <me@jonathanmoss.me> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Author: danbev

test/cctest/test_inspector_socket.cc

@@ -186,7 +186,6 @@ class TestInspectorDelegate : public InspectorSocket::Delegate {
 
  void process(inspector_handshake_event event, const std::string& path);
 
- bool disposed_ = false;
  delegate_fn handshake_delegate_;
  InspectorSocket::Pointer socket_;
  std::string ws_key_;