[seahorse] Remove unrecognized options in make distcheck.

[Niels De Graef <nielsdg src gnome org>]

commit 3458a4222784dd792c4c40181c1bb9b0c422e0d4
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Mon Oct 30 21:04:50 2017 +0100

    Remove unrecognized options in make distcheck.

 Makefile.am |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index da82dd7..13edc40 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -29,8 +29,6 @@ MAINTAINERCLEANFILES = \
        $(GITIGNORE_MAINTAINERCLEANFILES_M4_GETTEXT)
 
 DISTCHECK_CONFIGURE_FLAGS = \
-    --disable-scrollkeeper \
-    --disable-update-mime-database \
     --disable-debug \
     --disable-strict \
     --disable-valac \