Co-own gir directories instead of depending on gobject-introspection

... so that libgdata would be installable without pulling in
gobject-introspection.

libgdata.spec

@@ -23,8 +23,6 @@ BuildRequires:  libxml2-devel
 BuildRequires:  vala-devel
 BuildRequires:  vala-tools
 
-Requires:       gobject-introspection
-
 Obsoletes:      compat-libgdata19 < 0.17.1
 
 %description
@@ -73,6 +71,7 @@ find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
 %license COPYING
 %doc NEWS README AUTHORS
 %{_libdir}/libgdata.so.22*
+%dir %{_libdir}/girepository-1.0
 %{_libdir}/girepository-1.0/GData-0.0.typelib
 
 %files devel
@@ -80,6 +79,7 @@ find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
 %{_libdir}/libgdata.so
 %{_libdir}/pkgconfig/%{name}.pc
 %{_datadir}/gtk-doc/
+%dir %{_datadir}/gir-1.0
 %{_datadir}/gir-1.0/GData-0.0.gir
 %{_datadir}/vala/
 
@@ -87,6 +87,7 @@ find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
 * Wed Sep 21 2016 Kalev Lember <klember@redhat.com> - 0.17.6-1
 - Update to 0.17.6
 - Don't set group tags
+- Co-own gir directories instead of depending on gobject-introspection
 
 * Mon Sep 12 2016 Debarshi Ray <rishi@fedoraproject.org> - 0.17.5-2
 - Backport fix for crashes with zero-length files (GNOME #769727)