Revert of Added a debug info UI for Blimp

blimp/net/stream_socket_connection.h

Index: blimp/net/stream_socket_connection.h
diff --git a/blimp/net/stream_socket_connection.h b/blimp/net/stream_socket_connection.h
index 48c4c3edfcf6dcf66c1e8b4c456f88b7a082d8bc..f86de2209df9bc76d57ce0149868aca079253dec 100644
--- a/blimp/net/stream_socket_connection.h
+++ b/blimp/net/stream_socket_connection.h
@@ -15,13 +15,11 @@
 }  // namespace net
 
 namespace blimp {
-class BlimpConnectionStatistics;
 
 // BlimpConnection specialization for StreamSocket-based connections.
 class StreamSocketConnection : public BlimpConnection {
  public:
-  StreamSocketConnection(std::unique_ptr<net::StreamSocket> socket,
-                         BlimpConnectionStatistics* statistics);
+  explicit StreamSocketConnection(std::unique_ptr<net::StreamSocket> socket);
 
   ~StreamSocketConnection() override;