doc: Remove gtk-doc support

Makefile.am

@@ -1,5 +1,3 @@
-DISTCHECK_CONFIGURE_FLAGS=--enable-gtk-doc
-
 if BUILD_EXTERNAL
 SUBDIRS_EXT = ext
 else
@@ -12,14 +10,12 @@ SUBDIRS = 			\
 	gst sys $(SUBDIRS_EXT) 	\
 	tools 			\
 	tests 			\
-	docs			\
 	po 			\
 	common 			\
 	m4
 
 DIST_SUBDIRS = 			\
 	pkgconfig		\
-	docs			\
 	gst-libs		\
 	gst sys ext		\
 	tools 			\
@@ -79,7 +75,6 @@ CRUFT_FILES = \
 
 CRUFT_DIRS = \
 	$(top_srcdir)/docs/design \
-	$(top_srcdir)/docs/plugins/tmpl \
 	$(top_srcdir)/ext/gio \
 	$(top_srcdir)/gst/gdp \
 	$(top_srcdir)/sys/v4l \

configure.ac

@@ -1,7 +1,5 @@
 AC_PREREQ([2.69])
 
-dnl please read gstreamer/docs/random/autotools before changing this file
-
 dnl initialize autoconf
 dnl releases only do -Wall, git and prerelease does -Werror too
 dnl use a three digit version number for releases, and four for git/prerelease
@@ -157,10 +155,6 @@ AM_CONDITIONAL(HAVE_VALGRIND, test ! "x$VALGRIND_PATH" = "xno")
 dnl check for gobject-introspection
 GOBJECT_INTROSPECTION_CHECK([1.31.1])
 
-dnl check for documentation tools
-GTK_DOC_CHECK([1.12])
-AG_GST_PLUGIN_DOCS([1.12])
-
 dnl *** checks for libraries ***
 
 dnl libm, for sin() etc.
@@ -1040,10 +1034,6 @@ tests/examples/playrec/Makefile
 tests/files/Makefile
 tests/icles/Makefile
 tests/icles/playback/Makefile
-docs/Makefile
-docs/libs/Makefile
-docs/plugins/Makefile
-docs/version.entities
 po/Makefile.in
 common/Makefile
 common/m4/Makefile