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

ui/gfx/vector_icons/system_menu_timer.icon

Index: ui/gfx/vector_icons/system_menu_timer.icon
diff --git a/ui/gfx/vector_icons/system_menu_timer.icon b/ui/gfx/vector_icons/system_menu_timer.icon
deleted file mode 100644
index b3e4bb97be6a2d9f5f5e69f9b0ff89dce9ab007e..0000000000000000000000000000000000000000
--- a/ui/gfx/vector_icons/system_menu_timer.icon
+++ /dev/null
@@ -1,34 +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, 31.05f, 14.09f,
-R_LINE_TO, 2.13f, -2.13f,
-ARC_TO, 16.57f, 16.57f, 0, 0, 0, 31.06f, 9.84f,
-R_LINE_TO, -2.13f, 2.13f,
-ARC_TO, 13.44f, 13.44f, 0, 0, 0, 20.5f, 9,
-CUBIC_TO, 13.05f, 9, 7, 15.05f, 7, 22.5f,
-CUBIC_TO, 7, 29.95f, 13.03f, 36, 20.5f, 36,
-CUBIC_TO, 27.97f, 36, 34, 29.96f, 34, 22.5f,
-R_CUBIC_TO, 0, -3.18f, -1.11f, -6.1f, -2.95f, -8.41f,
-CLOSE,
-MOVE_TO, 20.5f, 33,
-CUBIC_TO, 14.7f, 33, 10, 28.31f, 10, 22.5f,
-CUBIC_TO, 10, 16.69f, 14.7f, 12, 20.5f, 12,
-CUBIC_TO, 26.3f, 12, 31, 16.7f, 31, 22.5f,
-CUBIC_TO, 31, 28.3f, 26.31f, 33, 20.5f, 33,
-CLOSE,
-MOVE_TO, 25, 4,
-R_H_LINE_TO, -9,
-R_V_LINE_TO, 3,
-R_H_LINE_TO, 9,
-V_LINE_TO, 4,
-CLOSE,
-R_MOVE_TO, -6, 19,
-R_H_LINE_TO, 3,
-R_V_LINE_TO, -8,
-R_H_LINE_TO, -3,
-R_V_LINE_TO, 8,
-CLOSE,
-END