Remove remaining uses of KeySystemInfo and InitDataTypeMask

media/base/key_system_info.cc

Index: media/base/key_system_info.cc
diff --git a/media/base/key_system_info.cc b/media/base/key_system_info.cc
deleted file mode 100644
index da3586d7f4ac25a1a66d1269651742aa3cbe8e26..0000000000000000000000000000000000000000
--- a/media/base/key_system_info.cc
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright 2013 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 "media/base/key_system_info.h"
-
-namespace media {
-
-KeySystemInfo::KeySystemInfo() {
-}
-
-KeySystemInfo::KeySystemInfo(const KeySystemInfo& other) = default;
-
-KeySystemInfo::~KeySystemInfo() {
-}
-
-}  // namespace media