Revert of Add new HTTP/2 and HPACK decoder in net/http2/.

net/http2/decoder/http2_frame_decoder_listener.cc

Index: net/http2/decoder/http2_frame_decoder_listener.cc
diff --git a/net/http2/decoder/http2_frame_decoder_listener.cc b/net/http2/decoder/http2_frame_decoder_listener.cc
deleted file mode 100644
index bf62ae4fe25dfdf88a6775aff41fe0becd471ee6..0000000000000000000000000000000000000000
--- a/net/http2/decoder/http2_frame_decoder_listener.cc
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "net/http2/decoder/http2_frame_decoder_listener.h"
-
-namespace net {
-
-bool Http2FrameDecoderNoOpListener::OnFrameHeader(
-    const Http2FrameHeader& header) {
-  return true;
-}
-
-}  // namespace net