eglfs: Prevent printing a warning in every widget-based app

Attempting to reflect reality with the value of AA_ShareOpenGLContexts
was a valiant attempt, but it is not possible to do setAttribute without
getting a warning now once QGuiApplication is constructed. So just leave
the attribute as is, changing its value is not strictly required.

Fixes: QTBUG-85796
Pick-to: 5.15
Change-Id: I0f0f981bb4883856b216b2a9aad3b5bf2d7da01a
Reviewed-by: Andy Nichols <andy.nichols@qt.io>

1 files changed, 1 insertions, 5 deletions

diff --git a/src/plugins/platforms/eglfs/api/qeglfswindow.cpp b/src/plugins/platforms/eglfs/api/qeglfswindow.cpp
index 452dba10c7..2ee237ec28 100644
--- a/src/plugins/platforms/eglfs/api/qeglfswindow.cpp
+++ b/src/plugins/platforms/eglfs/api/qeglfswindow.cpp
@@ -148,12 +148,8 @@ void QEglFSWindow::create()
         compositor->setRotation(qEnvironmentVariableIntValue("QT_QPA_EGLFS_ROTATION"));
         // If there is a "root" window into which raster and QOpenGLWidget content is
         // composited, all other contexts must share with its context.
-        if (!qt_gl_global_share_context()) {
+        if (!qt_gl_global_share_context())
             qt_gl_set_global_share_context(m_rasterCompositingContext);
-            // What we set up here is in effect equivalent to the application setting
-            // AA_ShareOpenGLContexts. Set the attribute to be fully consistent.
-            QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts);
-        }
     }
 #endif // QT_NO_OPENGL
 }