Avoid the gtk-doc dependency.

diff -Naur a/configure.ac b/configure.ac
--- a/configure.ac	2020-07-06 14:22:59.000000000 +0100
+++ b/configure.ac	2024-08-12 23:30:08.754675427 +0100
@@ -33,7 +33,6 @@
 # GTK Doc
 ###########################
 
-GTK_DOC_CHECK([1.14],[--flavour no-tmpl])
 
 
 ###########################
@@ -215,10 +214,6 @@
 bindings/vala/examples/Makefile
 tests/Makefile
 example/Makefile
-docs/Makefile
-docs/reference/Makefile
-docs/reference/version.xml
-docs/reference/libappindicator-docs.sgml
 ])
 
 if test "x$has_mono" = "xtrue" ; then
diff -Naur a/Makefile.am b/Makefile.am
--- a/Makefile.am	2020-07-06 14:22:59.000000000 +0100
+++ b/Makefile.am	2024-08-12 23:30:36.491482353 +0100
@@ -2,8 +2,7 @@
 
 SUBDIRS = \
       src		\
-	  bindings	\
-	  docs
+	  bindings
 
 # FIXME: Disabled, vala error
 #	  example	
@@ -14,14 +13,12 @@
 
 EXTRA_DIST = \
 	m4/introspection.m4 \
-	gtk-doc.make \
 	omf.make \
-	xmldocs.make \
 	autogen.sh \
 	COPYING.LGPL.2.1 \
 	ChangeLog
 
-DISTCHECK_CONFIGURE_FLAGS = --enable-gtk-doc --enable-localinstall --enable-introspection
+DISTCHECK_CONFIGURE_FLAGS = --enable-localinstall --enable-introspection
 
 dist-hook:
 	@if test -d "$(top_srcdir)/.bzr"; \