SUW: Drop SIM card tray illustration hint all together

 * Hard to view on dark mode and it's redundant as
   another SIM icon exists on the page. We can't really
   have an "illustration" for a generic ROM as every
   device is different and doesn't have SIM in the same
   place.

Change-Id: I443360e5b75aded8645e83365cc64641e6c5638e