diff --git a/nixos/modules/config/gnu.nix b/nixos/modules/config/gnu.nix
index f8c35b440d12..ad0e35c8a63f 100644
--- a/nixos/modules/config/gnu.nix
+++ b/nixos/modules/config/gnu.nix
@@ -37,7 +37,6 @@ with lib;
     services.openssh.enable = false;
     services.lshd.enable = true;
     programs.ssh.startAgent = false;
-    services.xserver.startGnuPGAgent = true;
 
     # TODO: GNU dico.
     # TODO: GNU Inetutils' inetd.
diff --git a/nixos/modules/rename.nix b/nixos/modules/rename.nix
index 0de6ca758c16..c6a781b6f00f 100644
--- a/nixos/modules/rename.nix
+++ b/nixos/modules/rename.nix
@@ -111,6 +111,7 @@ with lib;
     (mkRemovedOptionModule [ "services" "openvpn" "enable" ])
     (mkRemovedOptionModule [ "services" "printing" "cupsFilesConf" ])
     (mkRemovedOptionModule [ "services" "printing" "cupsdConf" ])
+    (mkRemovedOptionModule [ "services" "xserver" "startGnuPGAgent" ])
 
   ];
 }
diff --git a/nixos/modules/services/x11/display-managers/default.nix b/nixos/modules/services/x11/display-managers/default.nix
index 533b03aff08d..7dffdfc2b36c 100644
--- a/nixos/modules/services/x11/display-managers/default.nix
+++ b/nixos/modules/services/x11/display-managers/default.nix
@@ -49,17 +49,6 @@ let
         fi
       ''}
 
-      ${optionalString cfg.startGnuPGAgent ''
-        if test -z "$SSH_AUTH_SOCK"; then
-            # Restart this script as a child of the GnuPG agent.
-            exec "${pkgs.gnupg}/bin/gpg-agent"                         \
-              --enable-ssh-support --daemon                             \
-              --pinentry-program "${pkgs.pinentry}/bin/pinentry-gtk-2"  \
-              --write-env-file "$HOME/.gpg-agent-info"                  \
-              "$0" "$sessionType"
-        fi
-      ''}
-
       # Handle being called by kdm.
       if test "''${1:0:1}" = /; then eval exec "$1"; fi
 
diff --git a/nixos/modules/services/x11/xserver.nix b/nixos/modules/services/x11/xserver.nix
index abbe00cc8881..0fcea6ce5e4f 100644
--- a/nixos/modules/services/x11/xserver.nix
+++ b/nixos/modules/services/x11/xserver.nix
@@ -219,17 +219,6 @@ in
         '';
       };
 
-      startGnuPGAgent = mkOption {
-        type = types.bool;
-        default = false;
-        description = ''
-          Whether to start the GnuPG agent when you log in.  The GnuPG agent
-          remembers private keys for you so that you don't have to type in
-          passphrases every time you make an SSH connection or sign/encrypt
-          data.  Use <command>ssh-add</command> to add a key to the agent.
-        '';
-      };
-
       startDbusSession = mkOption {
         type = types.bool;
         default = true;
@@ -444,14 +433,7 @@ in
       in optional (driver != null) ({ inherit name; driverName = name; } // driver));
 
     assertions =
-      [ { assertion = !(config.programs.ssh.startAgent && cfg.startGnuPGAgent);
-          message =
-            ''
-              The OpenSSH agent and GnuPG agent cannot be started both. Please
-              choose between ‘programs.ssh.startAgent’ and ‘services.xserver.startGnuPGAgent’.
-            '';
-        }
-        { assertion = config.security.polkit.enable;
+      [ { assertion = config.security.polkit.enable;
           message = "X11 requires Polkit to be enabled (‘security.polkit.enable = true’).";
         }
       ];