staging: unisys: visorinput: remove redundant assignment of variable led

The variable led  is being assigned a value that is never used before
a return statement. The assignment is redundant and can be removed.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Addresses-Coverity: ("Unused value")
Link: https://lore.kernel.org/r/20210513220832.137336-1-colin.king@canonical.com


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