Remove '@section LICENSE'

Remove '@section LICENSE'

This was used in 2 special classes, the logger classes and spread
to a few other random classes.

Afaik this has no meaning. Is for something we don't use, and
goes against the meaning of '@section' in Doxygen, which we do
use.

In Doxygen output, all LICENSE references became links to
ProfilerXhprof (the one Doxygen encoutered first).

Bug: T72328
Change-Id: Icc7c443245c70bc0f549bee7d105eef5691c864d