diff -r 058bb3dc685f -r 0b59724cb3f2 web/data/cubicweb.tablesorter.css
--- a/web/data/cubicweb.tablesorter.css	Mon Jan 04 18:40:30 2016 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,14 +0,0 @@
-/* sortable tables */
-
-table.listing tr .headerSortUp {
-  background-image: url(asc.gif);
-}
-table.listing tr .headerSortDown {
-  background-image: url(desc.gif);
-}
-table.listing tr .headerSortDown, table.listing tr .headerSortUp {
-   background-color: %(listingBorderColor)s;
-   background-repeat: no-repeat;
-   background-position: center right;
-}
-