base.m4: Remove redundant haereses.

diff --git a/base.m4 b/base.m4
index 692a74b..21f774b 100644 (file)
--- a/base.m4
+++ b/base.m4
@@ -213,8 +213,7 @@ mail_check_sender:
 
        ## See whether there's a special exception for this sender domain.
        accept   senders = ${LOOKUP_DOMAIN($sender_address_domain,
-                            {KV(senders, {$value}{})},
-                            {})}
+                            {KV(senders)})}
 
        ## Ensure that the sender is routable.  This is important to prevent
        ## undeliverable bounces.