bug#13312: 24.3.50; delete selection mode not killing on overwrite

[Drew Adams]

I don't think this should be on the wishlist.  It's a clear bug.

(put 'ANY-COMMAND 'delete-selection 'kill) should kill the
text in the active region.  It does not do so in the case
where ANY-COMMAND is `self-insert-command'.  A bug.

The fact that "usually the delete text is still available from the
"PRIMARY" selection" is irrelevant.  (Not to mention that there is
no "PRIMARY" selection on some platforms.)

Putting `kill' as the property value should kill the text, pure and
simple.
ss