Remove hw_serial, ddi_strtoul()

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13434

module/os/freebsd/spl/spl_misc.c

@@ -43,15 +43,11 @@ static struct opensolaris_utsname hw_utsname = {
 	.machine = MACHINE
 };
 
-#ifndef KERNEL_STATIC
-char hw_serial[11] = "0";
-
 utsname_t *
 utsname(void)
 {
 	return (&hw_utsname);
 }
-#endif
 
 static void
 opensolaris_utsname_init(void *arg)

module/os/freebsd/spl/spl_sunddi.c

@@ -45,19 +45,6 @@ ddi_strtol(const char *str, char **nptr, int base, long *result)
 	return (0);
 }
 
-int
-ddi_strtoul(const char *str, char **nptr, int base, unsigned long *result)
-{
-
-	if (str == hw_serial) {
-		*result = prison0.pr_hostid;
-		return (0);
-	}
-
-	*result = strtoul(str, nptr, base);
-	return (0);
-}
-
 int
 ddi_strtoull(const char *str, char **nptr, int base, unsigned long long *result)
 {