Revert changes made in commit ed7abdb for building with libgd

After porting to GtkStack, we do not need them any more.

configure.ac

@@ -221,12 +221,12 @@ AC_SUBST(GITG_PLUGIN_DATADIR)
 GITG_PLUGIN_LIBDIR="$libdir/gitg/plugins"
 AC_SUBST(GITG_PLUGIN_LIBDIR)
 
-GITG_PLUGIN_CFLAGS="-I\$(top_srcdir)/libgd $GITG_CFLAGS"
+GITG_PLUGIN_CFLAGS="$GITG_CFLAGS"
 GITG_PLUGIN_LIBS="$GITG_LIBS 					\
+	\$(top_builddir)/libgd/libgd.la				\
 	\$(top_builddir)/libgitg/libgitg-1.0.la 		\
 	\$(top_builddir)/libgitg-ext/libgitg-ext-1.0.la 	\
-	\$(top_builddir)/libgitg-gtk/libgitg-gtk-1.0.la		\
-	\$(top_builddir)/libgd/libgd.la"
+	\$(top_builddir)/libgitg-gtk/libgitg-gtk-1.0.la"
 
 AC_SUBST(GITG_PLUGIN_CFLAGS)
 AC_SUBST(GITG_PLUGIN_LIBS)

libgitg-ext/Makefile.am

@@ -3,7 +3,6 @@ lib_LTLIBRARIES = libgitg-ext-1.0.la
 INCLUDES =								\
 	-I$(top_srcdir)							\
 	-I$(srcdir)							\
-	-I$(top_srcdir)/libgd						\
 	$(LIBGITG_EXT_CFLAGS)						\
 	$(WARN_CFLAGS)							\
 	-DDATADIR=\""$(datadir)"\"					\
@@ -15,15 +14,12 @@ COMMON_VALA_FLAGS =				\
 	--pkg gio-2.0				\
 	--pkg gtk+-3.0				\
 	--pkg gee-0.8				\
-	--pkg gd-1.0				\
 	--basedir $(top_srcdir)			\
-	--vapidir $(top_builddir)/libgd		\
 	--vapidir $(top_builddir)/libgitg
 
 AM_VALAFLAGS = 					\
 	$(COMMON_VALA_FLAGS)			\
 	--gir GitgExt-1.0.gir			\
-	--girdir $(top_builddir)/libgd		\
 	--girdir $(top_builddir)/libgitg	\
 	--includedir libgitg-ext		\
 	--header libgitg-ext.h			\
@@ -83,7 +79,7 @@ typelibdir = $(INTROSPECTION_TYPELIBDIR)
 typelib_DATA = GitgExt-1.0.typelib
 
 %.typelib: %.gir
-	$(INTROSPECTION_COMPILER) $(INTROSPECTION_COMPILER_ARGS) --includedir=. --includedir=$(top_builddir)/libgd --includedir=$(top_builddir)/libgitg -o $@ $<
+	$(INTROSPECTION_COMPILER) $(INTROSPECTION_COMPILER_ARGS) --includedir=. --includedir=$(top_builddir)/libgitg -o $@ $<
 
 if ENABLE_PYTHON
 overridesdir = $(pyoverridesdir)

plugins/history/Makefile.am

@@ -1,6 +1,7 @@
 INCLUDES =								\
 	-I$(top_srcdir)							\
 	-I$(srcdir)							\
+	-I$(top_srcdir)/libgd						\
 	$(GITG_PLUGIN_CFLAGS)						\
 	$(WARN_CFLAGS)							\
 	-DDATADIR=\""$(datadir)"\"					\