[gnome-photos] build: Remove unused macro definition

[Debarshi Ray <debarshir src gnome org>]

commit b4f7a7a52fffc9ac7719a01977975c67a0e7bbfe
Author: Debarshi Ray <debarshir gnome org>
Date:   Fri May 2 10:50:06 2014 +0200

    build: Remove unused macro definition
    
    Fallout from b09166df935d79c226fc2fa58bd2da2ffb243bf9

 src/Makefile.am |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 069d510..3a7135e 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -260,7 +260,6 @@ EXTRA_DIST = \
        $(NULL)
 
 AM_CPPFLAGS = \
-       -DPACKAGE_ICONS_DIR=\""${pkgdatadir}/icons"\" \
        -DPACKAGE_LOCALE_DIR=\""${datadir}/locale"\" \
        $(BABL_CFLAGS) \
        $(CAIRO_CFLAGS) \