staging: unisys: visornic: removed a blank line at the end of function

Removed a blank line at the end of function to clear checkpatch warning
and make it more like typical coding style.

Signed-off-by: Liu Junqi <liujunqi@pku.edu.cn>
Link: https://lore.kernel.org/r/20211125044729.594727-3-liujunqi@pku.edu.cn


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>