Move a bunch of ash-only vector icons to ash/.

ui/gfx/vector_icons/system_menu_timer.1x.icon

Index: ui/gfx/vector_icons/system_menu_timer.1x.icon
diff --git a/ui/gfx/vector_icons/system_menu_timer.1x.icon b/ui/gfx/vector_icons/system_menu_timer.1x.icon
deleted file mode 100644
index bfc0b90fb6884f369d252029e46c3149624b010b..0000000000000000000000000000000000000000
--- a/ui/gfx/vector_icons/system_menu_timer.1x.icon
+++ /dev/null
@@ -1,32 +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.
-
-CANVAS_DIMENSIONS, 20,
-MOVE_TO, 15.47f, 6.64f,
-R_LINE_TO, 1.1f, -1.1f,
-R_CUBIC_TO, -0.33f, -0.4f, -0.7f, -0.77f, -1.1f, -1.1f,
-LINE_TO, 14.37f, 5.54f,
-ARC_TO, 6.97f, 6.97f, 0, 0, 0, 10, 4,
-R_ARC_TO, 7, 7, 0, 1, 0, 7, 7,
-R_ARC_TO, 6.97f, 6.97f, 0, 0, 0, -1.53f, -4.36f,
-CLOSE,
-MOVE_TO, 10, 16,
-R_CUBIC_TO, -2.76f, 0, -5, -2.24f, -5, -5,
-R_CUBIC_TO, 0, -2.76f, 2.24f, -5, 5, -5,
-R_CUBIC_TO, 2.76f, 0, 5, 2.24f, 5, 5,
-R_CUBIC_TO, 0, 2.76f, -2.24f, 5, -5, 5,
-CLOSE,
-R_MOVE_TO, 2, -15,
-H_LINE_TO, 8,
-R_V_LINE_TO, 2,
-R_H_LINE_TO, 4,
-V_LINE_TO, 1,
-CLOSE,
-MOVE_TO, 9, 12,
-R_H_LINE_TO, 2,
-V_LINE_TO, 8,
-H_LINE_TO, 9,
-R_V_LINE_TO, 4,
-CLOSE,
-END