Remove unmaintained support for Doxygen generation

Signed-off-by: Yury V. Zaytsev <yury@shurup.com>

Author: zyv

.github/workflows/ci-ubuntu.yml

@@ -77,7 +77,6 @@ jobs:
               --disable-aspell \
               --disable-background \
               --disable-vfs \
-              --disable-doxygen-doc \
               --without-x \
               --without-gpm-mouse \
               --without-internal-edit \

.gitignore

@@ -33,7 +33,6 @@ stamp-h?
 stamp-h.in
 tmpout
 debug
-Doxyfile
 mc.kdevelop
 version.h
 TAGS

acinclude.m4

@@ -6,7 +6,6 @@ m4_include([m4.include/gnulib/fsusage.m4])
 m4_include([m4.include/gnulib/mountlist.m4])
 m4_include([m4.include/gnulib/windows-stat-inodes.m4])
 m4_include([m4.include/gnulib/sys_types_h.m4])
-m4_include([m4.include/dx_doxygen.m4])
 m4_include([m4.include/ax_require_defined.m4])
 m4_include([m4.include/ax_check_compile_flag.m4])
 m4_include([m4.include/ax_append_flag.m4])

configure.ac

@@ -522,17 +522,6 @@ for h_lang in $ALL_DOC_LINGUAS; do
 done
 AC_SUBST(DOC_LINGUAS)
 
-DX_HTML_FEATURE(ON)
-DX_CHM_FEATURE(OFF)
-DX_CHI_FEATURE(OFF)
-DX_MAN_FEATURE(OFF)
-DX_RTF_FEATURE(OFF)
-DX_XML_FEATURE(OFF)
-DX_PDF_FEATURE(OFF)
-DX_PS_FEATURE(OFF)
-DX_INIT_DOXYGEN(mc,doxygen.cfg,devel)
-
-
 dnl ############################################################################
 dnl Configure results
 dnl ############################################################################

doc/Makefile.am

@@ -1,7 +1,4 @@
 DIST_SUBDIRS = hints man hlp
 SUBDIRS = hints man hlp
 
-DOCS = FAQ HACKING INSTALL
-EXTRA_DIST = $(DX_CONFIG) doxygen-include.am $(DOCS)
-
-include doxygen-include.am
+EXTRA_DIST = FAQ HACKING INSTALL