cmake: remove FindQt5 module
cmake: remove FindQt5 module

Qt5 ships with a Qt5Config.cmake file itself, so a FindQt5.cmake file is
not necessary.

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