staging: most: core: remove attribute add_link

This patch removes the driver attribute add_link. It is not needed, because
the link management is now done via configfs.

Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 file changed