Revert of Added a debug info UI for Blimp

blimp/net/tcp_engine_transport.h

Index: blimp/net/tcp_engine_transport.h
diff --git a/blimp/net/tcp_engine_transport.h b/blimp/net/tcp_engine_transport.h
index 42da0189ba4fa07efbde80b06c26e352c49277b2..5a040d03c7dc305047541d7ed66b9645e3e9c7e8 100644
--- a/blimp/net/tcp_engine_transport.h
+++ b/blimp/net/tcp_engine_transport.h
@@ -23,15 +23,12 @@
 namespace blimp {
 
 class BlimpConnection;
-class BlimpConnectionStatistics;
 
 // BlimpTransport which listens for a TCP connection at |address|.
 class BLIMP_NET_EXPORT TCPEngineTransport : public BlimpTransport {
  public:
-  // Caller retains the ownership of |statistics| and |net_log|.
-  TCPEngineTransport(const net::IPEndPoint& address,
-                     BlimpConnectionStatistics* statistics,
-                     net::NetLog* net_log);
+  // Caller retains the ownership of |net_log|.
+  TCPEngineTransport(const net::IPEndPoint& address, net::NetLog* net_log);
   ~TCPEngineTransport() override;
 
   // BlimpTransport implementation.
@@ -45,7 +42,6 @@
   void OnTCPConnectAccepted(int result);
 
   const net::IPEndPoint address_;
-  BlimpConnectionStatistics* blimp_connection_statistics_;
   net::NetLog* net_log_;
   std::unique_ptr<net::ServerSocket> server_socket_;
   std::unique_ptr<net::StreamSocket> accepted_socket_;