Revert of Added a debug info UI for Blimp

blimp/engine/session/blimp_engine_session.cc

Index: blimp/engine/session/blimp_engine_session.cc
diff --git a/blimp/engine/session/blimp_engine_session.cc b/blimp/engine/session/blimp_engine_session.cc
index a0fb7f451b5460b72e91193c12195e0344a8c96e..f9d8c14b2751ab4db3a8a43e32ac93c5ffd9f3a8 100644
--- a/blimp/engine/session/blimp_engine_session.cc
+++ b/blimp/engine/session/blimp_engine_session.cc
@@ -23,7 +23,6 @@
 #include "blimp/engine/app/ui/blimp_window_tree_host.h"
 #include "blimp/engine/common/blimp_browser_context.h"
 #include "blimp/net/blimp_connection.h"
-#include "blimp/net/blimp_connection_statistics.h"
 #include "blimp/net/blimp_message_multiplexer.h"
 #include "blimp/net/blimp_message_thread_pipe.h"
 #include "blimp/net/browser_connection_handler.h"
@@ -149,7 +148,6 @@
   std::unique_ptr<BrowserConnectionHandler> connection_handler_;
   std::unique_ptr<EngineAuthenticationHandler> authentication_handler_;
   std::unique_ptr<EngineConnectionManager> connection_manager_;
-  BlimpConnectionStatistics blimp_connection_statistics_;
 
   DISALLOW_COPY_AND_ASSIGN(EngineNetworkComponents);
 };
@@ -180,8 +178,7 @@
 
   // Adds BlimpTransports to connection_manager_.
   net::IPEndPoint address(GetIPv4AnyAddress(), GetListeningPort());
-  TCPEngineTransport* transport =
-      new TCPEngineTransport(address, &blimp_connection_statistics_, net_log_);
+  TCPEngineTransport* transport = new TCPEngineTransport(address, net_log_);
   connection_manager_->AddTransport(base::WrapUnique(transport));
 
   transport->GetLocalAddress(&address);