staging: tidspbridge: clean up bridge_mmap()

The variable offset is not used but in the debug log, so I don't see reason to
calculate it here.

Signed-off-by: Víctor Manuel Jáquez Leal <vjaquez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 file changed