Removed obsolete setOption call from QSurfaceFormat

OpenFlipper.cc

@@ -590,7 +590,7 @@ QSurfaceFormat createFormat(QSurfaceFormat::OpenGLContextProfile _profile, int _
     if(_profile != QSurfaceFormat::CoreProfile)
         format.setOption(QSurfaceFormat::DeprecatedFunctions);
     if (_debugContext)
-        format.setOption(format.options() | QSurfaceFormat::DebugContext);
+        format.setOption(QSurfaceFormat::DebugContext);
 
     return format;
 }