configure*: Remove redundant AC_SUBST calls near HAVE_LTS

Added on commit d1acb31 ("compile time: enable LTS", 2021-02-28).

It only needs to be called once for each variable.  See the configure
script diff and the previous commit ("configure*: Move AC_SUBST calls to
more obvious places").

configure

@@ -3842,52 +3842,22 @@ fi
 if test "x$enable_lts" = "xyes"; then :
 
  HAVE_LTS="-DHAVE_LTS"
-
  HAVE_DBUSPROXY=""
-
-
  HAVE_OVERLAYFS=""
-
-
  HAVE_OUTPUT=""
-
-
  HAVE_USERTMPFS=""
-
-
  HAVE_MAN="-DHAVE_MAN"
-
-
  HAVE_FIRETUNNEL=""
-
-
  HAVE_PRIVATEHOME=""
-
-
  HAVE_CHROOT=""
-
-
  HAVE_GLOBALCFG=""
-
-
  HAVE_USERNS=""
-
-
  HAVE_X11=""
-
-
  HAVE_FILE_TRANSFER=""
-
-
  HAVE_SUID="yes"
-
-
  BUSYBOX_WORKAROUND="no"
-
-
  HAVE_CONTRIB_INSTALL="no",
 
-
 fi
 
 ac_ext=c

configure.ac

@@ -245,51 +245,21 @@ AC_ARG_ENABLE([lts],
  [AS_HELP_STRING([--enable-lts], [enable long-term support software version (LTS)])])
 AS_IF([test "x$enable_lts" = "xyes"], [
  HAVE_LTS="-DHAVE_LTS"
-
  HAVE_DBUSPROXY=""
- AC_SUBST([HAVE_DBUSPROXY])
-
  HAVE_OVERLAYFS=""
- AC_SUBST([HAVE_OVERLAYFS])
-
  HAVE_OUTPUT=""
- AC_SUBST([HAVE_OUTPUT])
-
  HAVE_USERTMPFS=""
- AC_SUBST([HAVE_USERTMPFS])
-
  HAVE_MAN="-DHAVE_MAN"
- AC_SUBST([HAVE_MAN])
-
  HAVE_FIRETUNNEL=""
- AC_SUBST([HAVE_FIRETUNNEL])
-
  HAVE_PRIVATEHOME=""
- AC_SUBST([HAVE_PRIVATE_HOME])
-
  HAVE_CHROOT=""
- AC_SUBST([HAVE_CHROOT])
-
  HAVE_GLOBALCFG=""
- AC_SUBST([HAVE_GLOBALCFG])
-
  HAVE_USERNS=""
- AC_SUBST([HAVE_USERNS])
-
  HAVE_X11=""
- AC_SUBST([HAVE_X11])
-
  HAVE_FILE_TRANSFER=""
- AC_SUBST([HAVE_FILE_TRANSFER])
-
  HAVE_SUID="yes"
- AC_SUBST([HAVE_SUID])
-
  BUSYBOX_WORKAROUND="no"
- AC_SUBST([BUSYBOX_WORKAROUND])
-
  HAVE_CONTRIB_INSTALL="no",
- AC_SUBST([HAVE_CONTRIB_INSTALL])
 ])
 
 AC_CHECK_HEADER([linux/seccomp.h], [], AC_MSG_ERROR([*** SECCOMP support is not installed (/usr/include/linux/seccomp.h missing) ***]))