Remove duplicated license file.

Remove the plain text license file below the rbutilqt folder and move
the HTML variant to the top-level docs folder. It's all GPL, so there's
no need to duplicate those files.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27996 a1c6a512-1295-4272-9138-f99709370657
4 files changed