kcms/tablet: Stop showing non existent buttons
Prevents the Tablet kcm from always showing 3 buttons on a pen if all supported pens have fewer than that. BUG: 516442
Join us at Akademy to celebrate KDE's 30th anniversary! Travel support requests are open till May 31st. Register now.
Prevents the Tablet kcm from always showing 3 buttons on a pen if all supported pens have fewer than that. BUG: 516442