Press-and-hold is fairly common on touch UIs, but click-and-hold is a
very rare interaction. As a result, the user is much more likely to
enter Edit Mode accidentally while trying to drag something on the
desktop than they are to know that click-and-hold works here and do
it intentionally.

Let's disable click-and-hold and only enter Edit Mode with a
press-and-hold using a touch device. For pointing device users, there
are already multiple context menus items that will let them enter Edit
Mode.

BUG: 457979
FIXED-IN: 5.26