diff --git a/scripts/run-regtests.sh b/scripts/run-regtests.sh
index 0e401ee0b..c3369bf69 100755
--- a/scripts/run-regtests.sh
+++ b/scripts/run-regtests.sh
@@ -241,15 +241,6 @@ _process() {
   done
 }
 
-# compute a version from up to 4 sub-version components, each multiplied
-# by a power of 1000, and padded left with 0, 1 or 2 zeroes.
-_version() {
-  OLDIFS="$IFS"; IFS="."; set -- $*; IFS="$OLDIFS"
-  set -- ${1%%[!0-9]*} 000${2%%[!0-9]*} 000${3%%[!0-9]*} 000${4%%[!0-9]*}
-  prf2=${2%???}; prf3=${3%???}; prf4=${4%???}
-  echo ${1}${2#$prf2}${3#$prf3}${4#$prf4}
-}
-
 
 HAPROXY_PROGRAM="${HAPROXY_PROGRAM:-${PWD}/haproxy}"
 HAPROXY_ARGS="${HAPROXY_ARGS--dM -dI -dW}"