media-gfx/shotwell: fix some dependencies

gcr[gtk] is needed for gcr-ui-3 in configure. desktop-file-utils is
pulled by xdg.eclass. No need to declare it if no direct use of it is
done in sources, build or ebuild. Add missing dependency on pkgconfig.
Drop unused gnome-doc-utils dependency.

Package-Manager: portage-2.3.2

media-gfx/shotwell/shotwell-0.25.0.1.ebuild

@@ -18,13 +18,12 @@ KEYWORDS="~alpha ~amd64 ~arm ~ia64 ~ppc ~ppc64 ~sparc ~x86"
 IUSE=""
 
 RDEPEND="
- app-text/gnome-doc-utils
+ >=app-crypt/gcr-3[gtk]
  >=dev-db/sqlite-3.5.9:3
  >=dev-libs/glib-2.40.0:2
  >=dev-libs/json-glib-0.7.6
  >=dev-libs/libgee-0.8.5:0.8
  >=dev-libs/libxml2-2.6.32:2
- >=dev-util/desktop-file-utils-0.13
  gnome-base/dconf
  >=media-libs/gexiv2-0.10.4
  media-libs/gst-plugins-base:1.0
@@ -39,13 +38,14 @@ RDEPEND="
  net-libs/webkit-gtk:4
  virtual/libgudev:=[introspection]
  >=x11-libs/gtk+-3.14.0:3[X]
- >=app-crypt/gcr-3
+
 "
 DEPEND="${RDEPEND}
  $(vala_depend)
  dev-util/itstool
  >=sys-devel/gettext-0.19.7
  >=sys-devel/m4-1.4.13
+ virtual/pkgconfig
 "
 
 # This probably comes from libraries that