Move more vector icons to more appropriate directories.

ui/gfx/vector_icons/file_download_shelf.icon

Index: ui/gfx/vector_icons/file_download_shelf.icon
diff --git a/ui/gfx/vector_icons/file_download_shelf.icon b/ui/gfx/vector_icons/file_download_shelf.icon
deleted file mode 100644
index a77e540997144e2c2bab184a844207dc3180ee4b..0000000000000000000000000000000000000000
--- a/ui/gfx/vector_icons/file_download_shelf.icon
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright 2015 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.
-
-// A modified version of "file_download" with a wider bottom bar and taller
-// arrow, and a white circle.
-CANVAS_DIMENSIONS, 72,
-PATH_COLOR_ARGB, 0xE6, 0xFF, 0xFF, 0xFF,
-CIRCLE, 36, 36, 36,
-NEW_PATH,
-MOVE_TO, 32, 22,
-R_H_LINE_TO, 8,
-R_V_LINE_TO, 10,
-R_H_LINE_TO, 6,
-R_LINE_TO, -10, 10,
-R_LINE_TO, -10, -10,
-R_H_LINE_TO, 6,
-R_V_LINE_TO, -10,
-CLOSE,
-MOVE_TO, 20, 56,
-R_H_LINE_TO, 32,
-R_V_LINE_TO, 4,
-R_H_LINE_TO, -32,
-CLOSE,
-END