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

ui/gfx/vector_icons/system_menu_bluetooth.icon

Index: ui/gfx/vector_icons/system_menu_bluetooth.icon
diff --git a/ui/gfx/vector_icons/system_menu_bluetooth.icon b/ui/gfx/vector_icons/system_menu_bluetooth.icon
deleted file mode 100644
index 613ea32e62840f2fb877a5ce6caf945096633f87..0000000000000000000000000000000000000000
--- a/ui/gfx/vector_icons/system_menu_bluetooth.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, 40,
-MOVE_TO, 21, 3,
-R_H_LINE_TO, -2,
-R_V_LINE_TO, 13,
-R_LINE_TO, -7.61f, -7.67f,
-LINE_TO, 9, 10.68f,
-LINE_TO, 19, 20,
-LINE_TO, 9, 29.32f,
-R_LINE_TO, 2.39f, 2.18f,
-LINE_TO, 19, 24,
-R_V_LINE_TO, 13,
-R_H_LINE_TO, 2,
-R_LINE_TO, 9, -10,
-R_LINE_TO, -7, -7,
-R_LINE_TO, 7, -7,
-R_LINE_TO, -9, -10,
-CLOSE,
-R_MOVE_TO, 1.55f, 6.72f,
-R_LINE_TO, 3.18f, 3.13f,
-R_LINE_TO, -3.18f, 3.13f,
-V_LINE_TO, 9.72f,
-CLOSE,
-R_MOVE_TO, 0, 20.57f,
-R_V_LINE_TO, -6.27f,
-R_LINE_TO, 3.18f, 3.13f,
-R_LINE_TO, -3.18f, 3.13f,
-CLOSE,
-END