net/jftpgw: remove no-op SUBST block

The function "log" has been renamed to "jlog" upstream.

net/jftpgw/Makefile

@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.16 2019/11/03 11:45:38 rillig Exp $
+# $NetBSD: Makefile,v 1.17 2020/04/27 04:47:32 rillig Exp $
 
 DISTNAME=	jftpgw-0.13.5
 CATEGORIES=	net
@@ -18,14 +18,6 @@ RCD_SCRIPTS=		jftpgw
 EGDIR=			${PREFIX}/share/examples/jftpgw
 CONF_FILES=		${EGDIR}/jftpgw.conf ${PKG_SYSCONFDIR}/jftpgw.conf
 
-SUBST_CLASSES+=		log
-SUBST_STAGE.log=	pre-configure
-SUBST_FILES.log=	active.c bindport.c cache.c cmds.c config.c \
-			ftpread.c fw_auth_cmds.c jftpgw.c log.c log.h \
-			login.c openport.c passive.c states.c std_cmds.c \
-			util.c
-SUBST_SED.log=		-e "s,\([[:space:]]\)\(log(\),\1x\2,"
-
 SUBST_CLASSES+=		config
 SUBST_STAGE.config=	post-build
 SUBST_FILES.config=	jftpgw.conf.sample