Scene2D: remove leftover OpenGL::doneCurrent call


Pick-to: 6.12 6.11 6.8
Change-Id: I8c7173cd3342922ed2349797fc9a8b297d8f2ef9
Reviewed-by: Mike Krus <mike.krus@kdab.com>
commit9aa6df31faabc61d54fc25682ca6a654dcdaf3ee
parent8a506d6e8feed743e0a22472268a238a88d0ecda
authorMauro Persano <mauro.persano@kdab.com>
committerMauro Persano <mauro.persano@kdab.com>
commit timeFri, 21 Aug 2026 19:20:42 +0000