[gnome-multi-writer] Drop unused build dependencies

[Michael Biebl <mbiebl src gnome org>]

commit d47a8692b75a50d1b1f93021ab792846e2faa537
Author: Michael Biebl <biebl debian org>
Date:   Sun Sep 4 15:10:18 2016 +0200

    Drop unused build dependencies
    
    We don't use gobject-introspection and don't ship any help documents.
    So remove those dependencies from configure.ac.

 configure.ac |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 3c8d6e9..f5dba56 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,8 +19,6 @@ LT_INIT
 AM_PROG_CC_C_O
 IT_PROG_INTLTOOL([0.50.0])
 GLIB_GSETTINGS
-GOBJECT_INTROSPECTION_CHECK([0.9.8])
-YELP_HELP_INIT
 
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 dnl - gettext stuff