diff --git a/acme.sh b/acme.sh
index deaf57a0..e68d88ba 100755
--- a/acme.sh
+++ b/acme.sh
@@ -6603,36 +6603,6 @@ deactivate() {
   done
 }
 
-#cert
-_getAKI() {
-  _cert="$1"
-  openssl x509 -in "$_cert" -text -noout | grep "X509v3 Authority Key Identifier" -A 1 | _tail_n 1 | tr -d ' :'
-}
-
-#cert
-_getSerial() {
-  _cert="$1"
-  openssl x509 -in "$_cert" -serial -noout | cut -d = -f 2
-}
-
-#cert
-_get_ARI() {
-  _cert="$1"
-  _aki=$(_getAKI "$_cert")
-  _ser=$(_getSerial "$_cert")
-  _debug2 "_aki" "$_aki"
-  _debug2 "_ser" "$_ser"
-
-  _akiurl="$(echo "$_aki" | _h2b | _base64 | tr -d = | _url_encode)"
-  _debug2 "_akiurl" "$_akiurl"
-  _serurl="$(echo "$_ser" | _h2b | _base64 | tr -d = | _url_encode)"
-  _debug2 "_serurl" "$_serurl"
-
-  _ARI_URL="$ACME_RENEWAL_INFO/$_akiurl.$_serurl"
-  _get "$_ARI_URL"
-
-}
-
 # Detect profile file if not specified as environment variable
 _detect_profile() {
   if [ -n "$PROFILE" -a -f "$PROFILE" ]; then