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 <[e-mail]>
Reviewed-by: Jiri Slaby <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/tty/sysrq.c

···
 	 * Behaves like do_proc_dointvec as t does not have min nor max.
 	 */
 	ret = proc_dointvec_minmax(&t, write, buffer, lenp, ppos);
-
-	if (ret || !write)
+	if (ret)
 		return ret;
 
 	if (write)