diff --git a/src/network/networkd-ndisc.c b/src/network/networkd-ndisc.c
index 95722e24ef..f31735b6ec 100644
--- a/src/network/networkd-ndisc.c
+++ b/src/network/networkd-ndisc.c
@@ -1175,27 +1175,6 @@ int ndisc_stop(Link *link) {
 }
 
 
-void ndisc_vacuum(Link *link) {
-        NDiscRDNSS *r;
-        NDiscDNSSL *d;
-        usec_t now_usec;
-
-        assert(link);
-        assert(link->manager);
-
-        /* Removes all RDNSS and DNSSL entries whose validity time has passed */
-
-        assert_se(sd_event_now(link->manager->event, CLOCK_BOOTTIME, &now_usec) >= 0);
-
-        SET_FOREACH(r, link->ndisc_rdnss)
-                if (r->lifetime_usec < now_usec)
-                        free(set_remove(link->ndisc_rdnss, r));
-
-        SET_FOREACH(d, link->ndisc_dnssl)
-                if (d->lifetime_usec < now_usec)
-                        free(set_remove(link->ndisc_dnssl, d));
-}
-
 void ndisc_flush(Link *link) {
         assert(link);
 
diff --git a/src/network/networkd-ndisc.h b/src/network/networkd-ndisc.h
index b696db9df1..6ccc1295d0 100644
--- a/src/network/networkd-ndisc.h
+++ b/src/network/networkd-ndisc.h
@@ -41,7 +41,6 @@ void network_adjust_ipv6_accept_ra(Network *network);
 
 int ndisc_start(Link *link);
 int ndisc_stop(Link *link);
-void ndisc_vacuum(Link *link);
 void ndisc_flush(Link *link);
 
 int link_request_ndisc(Link *link);
diff --git a/src/network/networkd-state-file.c b/src/network/networkd-state-file.c
index 502da1afb2..4932184991 100644
--- a/src/network/networkd-state-file.c
+++ b/src/network/networkd-state-file.c
@@ -540,9 +540,6 @@ int link_save(Link *link) {
 
                 /************************************************************/
 
-                /* Make sure to flush out old entries before we use the NDisc data */
-                ndisc_vacuum(link);
-
                 fputs("DNS=", f);
                 if (link->n_dns != UINT_MAX)
                         link_save_dns(link, f, link->dns, link->n_dns, NULL);