Redmine

The attached patch removes the following files from app/assets/images, which are no longer used. Each file is listed with the revision that replaced it.

• sort_asc.png and sort_desc.png: r17400
• hourglass.png: r23855 (#42797)
• bullet_diamond.png: r23024 (#23980)
• feed.png: r23673 (#42577)
• hourglass-empty.svg: r23987 (#42966)

The rules that still referred to bullet_diamond.png, feed.png, and hourglass-empty.svg in rtl.css were removed later, in r24163 (#43514) and r24326 (#43515).