[tracker] Revert "configure: Use subdir-objects Automake option"

[Sam Thursfield <sthursfield src gnome org>]

commit 148922ebe4b194d980f127fbfcb93e3a7adc50e9
Author: Sam Thursfield <ssssam gmail com>
Date:   Sun Mar 27 02:40:21 2016 +0100

    Revert "configure: Use subdir-objects Automake option"
    
    This reverts commit 5ae20fb915659163e68f5f18bbd444e8de30d02b.
    
    Lesson learned (again): don't do something just because Automake tells
    you to.
    
    Notice the same thing happened back in commit e46bfc1c43 which
    was reverted again in b1e3997ce7b894.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 607f9ec..0d6c274 100644
--- a/configure.ac
+++ b/configure.ac
@@ -55,7 +55,7 @@ AC_CONFIG_HEADERS([config.h])
 # See: https://www.gnu.org/software/autoconf/manual/autoconf-2.64/html_node/Posix-Variants.html
 AC_USE_SYSTEM_EXTENSIONS
 
-AM_INIT_AUTOMAKE([1.11 no-define tar-ustar -Wno-portability no-dist-gzip dist-xz subdir-objects])
+AM_INIT_AUTOMAKE([1.11 no-define tar-ustar -Wno-portability no-dist-gzip dist-xz])
 
 AC_PROG_LIBTOOL