diff --git a/build/source_list.bzl b/build/source_list.bzl
index 386d907..8388cfb 100644
--- a/build/source_list.bzl
+++ b/build/source_list.bzl
@@ -402,7 +402,6 @@
     "spdy/core/spdy_bitmasks.h",
     "spdy/core/spdy_frame_builder.h",
     "spdy/core/spdy_framer.h",
-    "spdy/core/spdy_headers_handler_interface.h",
     "spdy/core/spdy_protocol.h",
     "web_transport/complete_buffer_visitor.h",
     "web_transport/encapsulated/encapsulated_web_transport.h",
diff --git a/build/source_list.gni b/build/source_list.gni
index 2004269..c5c6eb6 100644
--- a/build/source_list.gni
+++ b/build/source_list.gni
@@ -402,7 +402,6 @@
     "src/quiche/spdy/core/spdy_bitmasks.h",
     "src/quiche/spdy/core/spdy_frame_builder.h",
     "src/quiche/spdy/core/spdy_framer.h",
-    "src/quiche/spdy/core/spdy_headers_handler_interface.h",
     "src/quiche/spdy/core/spdy_protocol.h",
     "src/quiche/web_transport/complete_buffer_visitor.h",
     "src/quiche/web_transport/encapsulated/encapsulated_web_transport.h",
diff --git a/build/source_list.json b/build/source_list.json
index 7e6cd21..39246f8 100644
--- a/build/source_list.json
+++ b/build/source_list.json
@@ -401,7 +401,6 @@
     "quiche/spdy/core/spdy_bitmasks.h",
     "quiche/spdy/core/spdy_frame_builder.h",
     "quiche/spdy/core/spdy_framer.h",
-    "quiche/spdy/core/spdy_headers_handler_interface.h",
     "quiche/spdy/core/spdy_protocol.h",
     "quiche/web_transport/complete_buffer_visitor.h",
     "quiche/web_transport/encapsulated/encapsulated_web_transport.h",
diff --git a/quiche/spdy/core/spdy_headers_handler_interface.h b/quiche/spdy/core/spdy_headers_handler_interface.h
deleted file mode 100644
index 8134781..0000000
--- a/quiche/spdy/core/spdy_headers_handler_interface.h
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright 2015 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.
-
-#ifndef QUICHE_SPDY_CORE_SPDY_HEADERS_HANDLER_INTERFACE_H_
-#define QUICHE_SPDY_CORE_SPDY_HEADERS_HANDLER_INTERFACE_H_
-
-#include "quiche/http2/core/spdy_headers_handler_interface.h"
-
-#endif  // QUICHE_SPDY_CORE_SPDY_HEADERS_HANDLER_INTERFACE_H_