qtads: remove doc files no longer shipped upstream
tree07864e480212e3726514036881f844ae3b09b2e6
drwxr-xr-x - dev-games
drwxr-xr-x - dev-lang
drwxr-xr-x - games-engines
drwxr-xr-x - licenses
drwxr-xr-x - metadata
drwxr-xr-x - profiles
drwxr-xr-x - virtual