tty: sysrq: delete unnecessary check

This code checks if (write) is true twice in a row.  It's more
readable to delete the first check.

Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/aJNAhHtKkhWjosDV@stanley.mountain


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