[Touchpad KCM] Revoke touchpad enabled/disabled notification before sending a…

Authored by broulik on May 28 2019, 2:05 PM.

Description

[Touchpad KCM] Revoke touchpad enabled/disabled notification before sending a new one

BUG: 387590
FIXED-IN: 5.16.0

Differential Revision: https://phabricator.kde.org/D21439