You can to consider remove libgnome-keyring-dev from Build-Depends, as well.
diff -Nru seahorse-3.8.2/debian/control seahorse-3.8.2/debian/control --- seahorse-3.8.2/debian/control 2013-05-26 00:09:41.000000000 +0200 +++ seahorse-3.8.2/debian/control 2013-12-16 00:27:07.000000000 +0100 @@ -2,12 +2,11 @@ # # Modifications should be made to debian/control.in instead. # This file is regenerated automatically in the clean target. - Source: seahorse Section: gnome Priority: optional Maintainer: Debian GNOME Maintainers <pkg-gnome-maintain...@lists.alioth.debian.org> -Uploaders: Andreas Henriksson <andr...@fatal.se>, Jordi Mallach <jo...@debian.org>, Josselin Mouette <j...@debian.org>, Michael Biebl <bi...@debian.org> +Uploaders: Andreas Henriksson <andr...@fatal.se>, Jordi Mallach <jo...@debian.org>, Michael Biebl <bi...@debian.org> Build-Depends: cdbs (>= 0.4.41), debhelper (>= 8), dh-autoreconf, @@ -19,9 +18,7 @@ libldap2-dev, libavahi-glib-dev (>= 0.6), libavahi-client-dev (>= 0.6), - gnome-doc-utils, gtk-doc-tools (>= 1.9), - libgnome-keyring-dev (>= 3.0.0), libglib2.0-dev (>= 2.10.0), libgtk-3-dev (>= 3.4.0), libsecret-1-dev (>= 0.5), diff -Nru seahorse-3.8.2/debian/control.in seahorse-3.8.2/debian/control.in --- seahorse-3.8.2/debian/control.in 2013-05-26 00:07:32.000000000 +0200 +++ seahorse-3.8.2/debian/control.in 2013-12-16 00:26:12.000000000 +0100 @@ -14,9 +14,7 @@ libldap2-dev, libavahi-glib-dev (>= 0.6), libavahi-client-dev (>= 0.6), - gnome-doc-utils, gtk-doc-tools (>= 1.9), - libgnome-keyring-dev (>= 3.0.0), libglib2.0-dev (>= 2.10.0), libgtk-3-dev (>= 3.4.0), libsecret-1-dev (>= 0.5),