[gnome-photos] data: Remove legacy screenshots

[Debarshi Ray <debarshir src gnome org>]

commit c648e2050aac0942092263e6fe3ffec16dcd9075
Author: Debarshi Ray <debarshir gnome org>
Date:   Sat Jul 28 19:39:19 2018 +0200

    data: Remove legacy screenshots
    
    It's been a year since the screenshot files were moved to
    static.gnome.org in commit e195fbeef06f6109. The old files were
    retained for users of existing stable releases at that time. It's time
    to retire them.

 data/screenshots/gnome-photos-1.png | Bin 507395 -> 0 bytes
 data/screenshots/gnome-photos-2.png | Bin 874228 -> 0 bytes
 data/screenshots/gnome-photos-3.png | Bin 478880 -> 0 bytes
 3 files changed, 0 insertions(+), 0 deletions(-)