[gnome-photos] build: Don't AX_REQUIRE_DEFINED private macros

[Debarshi Ray <debarshir src gnome org>]

commit ed111f8656fd9a6a2f04a4475b0cf48e9a96a075
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Aug 17 12:10:18 2017 +0200

    build: Don't AX_REQUIRE_DEFINED private macros
    
    This fixes the problem with calling aclocal in autogen.sh. However,
    doing that may overwrite our copies of the AX_* macros with newer
    versions from autoconf-archive. That's problematic. See commit
    ac6d779679f320fa for an example where updating the AX_* macros broke
    the build.

 configure.ac |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 7e2b5bb..18c47d8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -115,7 +115,6 @@ PKG_CHECK_MODULES(GTK_UNIX_PRINT, [gtk+-unix-print-3.0])
 PKG_CHECK_MODULES(PNG, [libpng16])
 PKG_CHECK_MODULES(TRACKER, [tracker-control-2.0 tracker-sparql-2.0])
 
-AX_REQUIRE_DEFINED([LIBGD_INIT])
 LIBGD_INIT([
   gtk-hacks
   main-box
@@ -130,7 +129,6 @@ AC_ARG_ENABLE(dogtail,
               enable_dogtail=yes)
 AM_CONDITIONAL(ENABLE_DOGTAIL, test "$enable_dogtail" != no)
 
-AX_REQUIRE_DEFINED([GLIB_TESTS])
 GLIB_TESTS
 
 GLIB_COMPILE_RESOURCES=`$PKG_CONFIG --variable glib_compile_resources gio-2.0`