Diffusion KWin 1af0ee3f71ea

[effects/presentwindows] Fix newly introduced memory leak

Authored by davidedmundson on Oct 21 2019, 3:45 PM.

Description

[effects/presentwindows] Fix newly introduced memory leak

Summary: Introduced by accident in my port.

Reviewers: KWin

Subscribers: kwin

Tags: KWin

Differential Revision: https://phabricator.kde.org/D24835