Remove unused Http2Deque and QuicheDequeImpl.

PiperOrigin-RevId: 378907933

common/platform/default/quiche_platform_impl/quiche_containers_impl.h

diff --git a/common/platform/default/quiche_platform_impl/quiche_containers_impl.h b/common/platform/default/quiche_platform_impl/quiche_containers_impl.h
deleted file mode 100644
index 2e18dd7..0000000
--- a/common/platform/default/quiche_platform_impl/quiche_containers_impl.h
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2021 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_COMMON_PLATFORM_DEFAULT_QUICHE_PLATFORM_IMPL_QUICHE_CONTAINERS_IMPL_H_
-#define QUICHE_COMMON_PLATFORM_DEFAULT_QUICHE_PLATFORM_IMPL_QUICHE_CONTAINERS_IMPL_H_
-
-#include <deque>
-
-namespace quiche {
-
-// Represents a double-ended queue which may be backed by a list or a flat
-// circular buffer.
-//
-// DOES NOT GUARANTEE POINTER OR ITERATOR STABILITY!
-template <typename T>
-using QuicheDequeImpl = std::deque<T>;
-
-}  // namespace quiche
-
-#endif  // QUICHE_COMMON_PLATFORM_DEFAULT_QUICHE_PLATFORM_IMPL_QUICHE_CONTAINERS_IMPL_H_

http2/platform/api/http2_containers.h

diff --git a/http2/platform/api/http2_containers.h b/http2/platform/api/http2_containers.h
deleted file mode 100644
index 7bd3f8e..0000000
--- a/http2/platform/api/http2_containers.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef QUICHE_HTTP2_PLATFORM_API_HTTP2_CONTAINERS_H_
-#define QUICHE_HTTP2_PLATFORM_API_HTTP2_CONTAINERS_H_
-
-#include "quiche_platform_impl/quiche_containers_impl.h"
-
-namespace http2 {
-
-// Represents a double-ended queue which may be backed by a list or a flat
-// circular buffer.
-//
-// DOES NOT GUARANTEE POINTER OR ITERATOR STABILITY!
-template <typename T>
-using Http2Deque = quiche::QuicheDequeImpl<T>;
-
-}  // namespace http2
-
-#endif  // QUICHE_HTTP2_PLATFORM_API_HTTP2_CONTAINERS_H_