diff --git a/build/extract_member_dates.xsl b/attic/extract_member_dates.xsl
similarity index 100%
rename from build/extract_member_dates.xsl
rename to attic/extract_member_dates.xsl
diff --git a/build.xml b/build.xml
index 031bc98c..5391f129 100644
--- a/build.xml
+++ b/build.xml
@@ -1070,17 +1070,6 @@
 		</exec>
 	</target>
 
-	<!--
-		Extract member list for joining date backfill.
-	-->
-	<target name="extract.member.dates">
-		<echo>Extracting member dates</echo>
-		<XALAN.xmldir
-			i="members.xml"
-			o="member-dates.txt"
-			x="extract_member_dates.xsl"/>
-	</target>
-
 	<!--
 		Utility to fold overlong embedded certificates.
 	-->