Revert "Bug 960720 - Change the client side Smart Collection wallpapers [r=ranbena]"

This reverts commit 13c94caf282413bae2cc88cf2662b76ca0426f73.
Revert "Bug 965711 - [VsD Refresh] Homescreen/E.Me - Implement visual refresh to smart collections icons [r=ranbena]"

This reverts commit 76e4b6e148cc8f162c8e3d61c652ac330d13cad0.