Slim down the gtk4 subpackages

There is currently no separate GTK 4 introspection support, so drop it.
Additionally, make the -gtk4-devel subpackage depend on the base (gtk3)
-devel subpackage, and keep a single copy of the headers and
documentation there.

colord-gtk.spec

@@ -38,18 +38,19 @@ Requires: %{name}%{?_isa} = %{version}-%{release}
 Files for development with %{name}.
 
 %package -n colord-gtk4
-Summary:    GTK+ 4 support library for colord
+Summary:  GTK 4 support library for colord
 
 %description -n colord-gtk4
 colord-gtk is a support library for colord and provides additional
-functionality that requires GTK+. This package contains the GTK+ 4
+functionality that requires GTK. This package contains the GTK 4
 build of colord-gtk.
 
 %package -n colord-gtk4-devel
-Summary:    Development package for colord-gtk4
+Summary:  Development package for colord-gtk4
+Requires: %{name}-devel%{?_isa} = %{version}-%{release}
 
 %description -n colord-gtk4-devel
-Files for GTK+ 4 development with %{name}4.
+Files for GTK 4 development with %{name}4.
 
 %prep
 %autosetup -p1
@@ -74,7 +75,6 @@ Files for GTK+ 4 development with %{name}4.
 
 %files -n colord-gtk4
 %{_libdir}/libcolord-gtk4.so.*
-%{_libdir}/girepository-1.0/ColordGtk-1.0.typelib
 
 %files devel
 %{_libdir}/libcolord-gtk.so
@@ -94,17 +94,7 @@ Files for GTK+ 4 development with %{name}4.
 %files -n colord-gtk4-devel
 %{_libdir}/libcolord-gtk4.so
 %{_libdir}/pkgconfig/colord-gtk4.pc
-%dir %{_includedir}/colord-1
-%{_includedir}/colord-1/colord-gtk.h
-%dir %{_includedir}/colord-1/colord-gtk
-%{_includedir}/colord-1/colord-gtk/*.h
-%dir %{_datadir}/gir-1.0
-%{_datadir}/gir-1.0/ColordGtk-1.0.gir
-%doc %{_datadir}/gtk-doc/html/colord-gtk
-%{_datadir}/vala/vapi/colord-gtk.vapi
-%{_datadir}/vala/vapi/colord-gtk.deps
-%dir %{_datadir}/gtk-doc
-%dir %{_datadir}/gtk-doc/html
+# Requires the base -devel package for headers. No GTK 4 .gir nor VAPI yet.
 
 
 %changelog