Remove duplicate binding for Shift-Delete

[lnicola]

• Added an entry to CHANGELOG.md if this change could be valuable to users

#2071 added this binding, but it's redundant with the existing one (for cut). Worse, the result is that two lines are removed instead of a single one.

I think it's better to cut instead of deleting because that's what every editor I've seen does. And Cut without a selection, already cuts the whole line, as it does everywhere else.

[lnicola]

CC @phw

[phw]

And Cut without a selection, already cuts the whole line, as it does everywhere else.

"Cut" and "Delete lines" are not identical. "Cut" cuts the selection, whereas delete lines does delete all selected lines (also partially selected). But as the delete_line command you added handles this all is good for me, don't need a default key binding.

And the delete_line action works well for me, thanks a lot for this :) I usually have it bound to Ctrl+Shift+K .