build: *really* install tmpfiles.d/systemd-remote.conf when necessary (#6061)

This fixes commit 5e354b2252 which was an attempt to avoid installation
of tmpfiles.d/systemd-remote.conf when it was not needed (ie HAVE_REMOTE=false).

Before this fix and with the autotool build, systemd-remote.conf was
distributed and also installed (although it was empty) even though
HAVE_REMOTE=false.

That's what happens when doing last second changes without retesting...

While at it, update tmpfiles.d/.gitignore (var.conf was missing as well
since commit a083537e5d).

Makefile.am

@@ -2676,7 +2676,6 @@ nodist_systemunit_DATA += \
 
 nodist_tmpfiles_DATA = \
 	tmpfiles.d/systemd.conf \
-	tmpfiles.d/systemd-remote.conf \
 	tmpfiles.d/var.conf \
 	tmpfiles.d/etc.conf
 
@@ -2693,6 +2692,11 @@ dist_tmpfiles_DATA += \
 	tmpfiles.d/legacy.conf
 endif
 
+if HAVE_REMOTE
+nodist_tmpfiles_DATA += \
+	tmpfiles.d/systemd-remote.conf
+endif
+
 SYSINIT_TARGET_WANTS += \
 	systemd-tmpfiles-setup-dev.service \
 	systemd-tmpfiles-setup.service
@@ -4361,13 +4365,6 @@ EXTRA_DIST += \
 	src/journal-remote/log-generator.py
 endif
 
-if HAVE_REMOTE
-if ENABLE_TMPFILES
-dist_tmpfiles_DATA += \
-	tmpfiles.d/systemd-remote.conf
-endif
-endif
-
 # using _CFLAGS = in the conditional below would suppress AM_CFLAGS
 journalctl_CFLAGS = \
 	$(AM_CFLAGS)

tmpfiles.d/.gitignore

@@ -1,2 +1,4 @@
 /etc.conf
 /systemd.conf
+/systemd-remote.conf
+/var.conf