[gjs: 4/10] examples: Delete Clutter example

[Philip Chimento <pchimento src gnome org>]

commit f4d9ca9eada147f8f03a513e0db4b1a3b80f8123
Author: Philip Chimento <philip chimento gmail com>
Date:   Fri Feb 18 17:39:07 2022 -0800

    examples: Delete Clutter example
    
    Clutter as a standalone library is being retired.
    https://discourse.gnome.org/t/retiring-clutter-and-friends/8949

 examples/clutter.js | 25 -------------------------
 1 file changed, 25 deletions(-)