Bug 8662 - Remove unused famfamfam icons

This patch removes images in the famfamfam directory
which are unused by Koha. Files to delete were chosen
based on a search of the Koha source.

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>