[gtk+/gtk-3-22] Fix the build

[Matthias Clasen <matthiasc src gnome org>]

commit 2b0eafb8dcc823abfc4121a2df334e1780837c92
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue May 9 14:01:22 2017 -0400

    Fix the build
    
    It seems that new gtk-doc doesn't like this variable,
    so drop it.

 docs/reference/gtk/Makefile.am |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/docs/reference/gtk/Makefile.am b/docs/reference/gtk/Makefile.am
index 5a88a12..9442a5d 100644
--- a/docs/reference/gtk/Makefile.am
+++ b/docs/reference/gtk/Makefile.am
@@ -278,8 +278,6 @@ GTKDOC_LIBS = \
 # Extra options to supply to gtkdoc-mkdb
 MKDB_OPTIONS=--output-format=xml --name-space=gtk
 
-MKHTML_OPTIONS="--path=\"$(abs_srcdir):$(top_srcdir)/examples\""
-
 # Extra SGML files that are included by $(DOC_MAIN_SGML_FILE)
 content_files =                                        \
        broadway.xml                            \