Remove pointless tooltip for yes and no KStandardGuiItems
These buttons have tooltips with the exact same text that is shown on them, which is pointless.
If this is not a mistake, I suspect that logic is that the application might override the text in a way that's unclear to the user, so the tooltip could provide clarity. However this too is false: in such a situation, the words "yes" and "no" cannot be guaranteed to map to clearly identifiable actions, so showing these tooltips would only muddy the situation even further.
Let's trust application developers to write good text if they override the default text, and remove these tooltips.
BUG: 424658 FIXED-IN: 5.81
cc @teams/vdg