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),
