* acinclude.m4 (APACHE_CHECK_SYSTEMD): Remove redundant test.

Submitted by: Pascal Terjan <pterjan linuxfr.org>
PR: 57631

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1875128 13f79535-47bb-0310-9956-ffa450edef68
(cherry picked from commit 6db29cc)

Author: notroj

acinclude.m4

@@ -627,7 +627,7 @@ case $host in
    fi
    if test -n "$SYSTEMD_LIBS"; then
       AC_CHECK_HEADERS(systemd/sd-daemon.h)
-      if test "${ac_cv_header_systemd_sd_daemon_h}" = "no" || test -z "${SYSTEMD_LIBS}"; then
+      if test "${ac_cv_header_systemd_sd_daemon_h}" = "no"; then
         AC_MSG_WARN([Your system does not support systemd.])
       else
         AC_DEFINE(HAVE_SYSTEMD, 1, [Define if systemd is supported])