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

ui/gfx/vector_icons/system_menu_cast.icon

Index: ui/gfx/vector_icons/system_menu_cast.icon
diff --git a/ui/gfx/vector_icons/system_menu_cast.icon b/ui/gfx/vector_icons/system_menu_cast.icon
deleted file mode 100644
index 1b5440745e2f91af38bc14a495905becc0c8ec82..0000000000000000000000000000000000000000
--- a/ui/gfx/vector_icons/system_menu_cast.icon
+++ /dev/null
@@ -1,47 +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, 40,
-PATH_COLOR_ARGB, 0xFF, 0x5A, 0x5A, 0x5A,
-MOVE_TO, 4, 30.06f,
-V_LINE_TO, 34,
-R_H_LINE_TO, 4,
-R_CUBIC_TO, 0, -2.18f, -1.79f, -3.94f, -4, -3.94f,
-CLOSE,
-R_MOVE_TO, 0, -6.3f,
-R_V_LINE_TO, 2.93f,
-R_CUBIC_TO, 4.1f, 0, 7.43f, 3.28f, 7.43f, 7.32f,
-H_LINE_TO, 14.4f,
-R_CUBIC_TO, 0, -5.66f, -4.65f, -10.24f, -10.4f, -10.24f,
-CLOSE,
-R_MOVE_TO, 0, -5.52f,
-R_V_LINE_TO, 2.87f,
-R_CUBIC_TO, 7.23f, 0, 13.09f, 5.77f, 13.09f, 12.89f,
-H_LINE_TO, 20,
-R_CUBIC_TO, 0, -8.71f, -7.17f, -15.76f, -16, -15.76f,
-CLOSE,
-MOVE_TO, 6.91f, 8,
-CUBIC_TO, 5.31f, 8, 4, 9.3f, 4, 10.89f,
-V_LINE_TO, 15,
-R_H_LINE_TO, 3,
-R_V_LINE_TO, -4,
-R_H_LINE_TO, 26,
-R_V_LINE_TO, 20,
-H_LINE_TO, 23,
-R_V_LINE_TO, 3,
-R_H_LINE_TO, 10.09f,
-R_CUBIC_TO, 1.6f, 0, 2.91f, -1.3f, 2.91f, -2.89f,
-V_LINE_TO, 10.89f,
-CUBIC_TO, 36, 9.3f, 34.69f, 8, 33.09f, 8,
-H_LINE_TO, 6.91f,
-CLOSE,
-NEW_PATH,
-MOVE_TO, 10, 14,
-R_V_LINE_TO, 2.63f,
-CUBIC_TO, 16.25f, 17.5f, 20.83f, 24.94f, 22.08f, 28,
-H_LINE_TO, 30,
-V_LINE_TO, 14,
-H_LINE_TO, 10,
-CLOSE,
-END