staging: unisys: visornic: Fix repeated words in comments

This patch removes some repeated words in code comments.

Signed-off-by: Klemen Košir <klemen.kosir@kream.io>
Link: https://lore.kernel.org/r/20210303090134.16007-1-klemen.kosir@kream.io


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