[gnome-initial-setup] Remove unused gnome-initial-setup.service

[Will Thompson <wjt src gnome org>]

commit 9f6ed19aa613fccb84eecdb025a5e2de603aad10
Author: Will Thompson <will willthompson co uk>
Date:   Tue Feb 13 14:41:25 2018 +0000

    Remove unused gnome-initial-setup.service
    
    This should have been removed in
    88f61b7f92c3d31909bc62bc2ce70a6a42140f0e, which stopped installing it
    and removed all the code dealing with it.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=793429

 data/gnome-initial-setup.service |   15 ---------------
 1 files changed, 0 insertions(+), 15 deletions(-)