Remove unused m_wmDeleteMessage variable.
Remove unused m_wmDeleteMessage variable.

ValveSoftware/vogl,bclemetsonblizzard/vogl,bclemetsonblizzard/vogl,kingtaurus/vogl,ValveSoftware/vogl,ValveSoftware/vogl,ValveSoftware/vogl,bclemetsonblizzard/vogl,bclemetsonblizzard/vogl,kingtaurus/vogl,bclemetsonblizzard/vogl,kingtaurus/vogl,kingtaurus/vogl