[file-roller] Remove screenshots from el translation not used anymore in docs

[Andre Klapper <aklapper src gnome org>]

commit d4152532c57353849bd9b8efd1e8981196e12123
Author: Andre Klapper <a9016009 gmx de>
Date:   Sat Aug 5 23:06:16 2017 +0200

    Remove screenshots from el translation not used anymore in docs
    
    These old images are not used in the current documentation.

 help/el/figures/file-roller-main-window.png |  Bin 51111 -> 0 bytes
 help/el/figures/file-roller_main_window.png |  Bin 51111 -> 0 bytes
 2 files changed, 0 insertions(+), 0 deletions(-)