autotools: remove

Since 2008, autotools has served us well - thank you!

However, mu is now using meson build, and it's time to remove the
autotools support -- one build system is enough.

lib/utils/Makefile.am

@@ -1,74 +0,0 @@
-## Copyright (C) 2022 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 3 of the License, or
-## (at your option) any later version.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
-## You should have received a copy of the GNU General Public License
-## along with this program; if not, write to the Free Software Foundation,
-## Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-
-include $(top_srcdir)/gtest.mk
-
-AM_CFLAGS=							\
-	$(WARN_CFLAGS)						\
-	$(GLIB_CFLAGS)						\
-	$(ASAN_CFLAGS)						\
-	$(CODE_COVERAGE_CFLAGS)					\
-	-DMU_TESTMAILDIR=\"${abs_top_srcdir}/lib/testdir\"	\
-	-DMU_TESTMAILDIR2=\"${abs_top_srcdir}/lib/testdir2\"	\
-	-Wno-format-nonliteral					\
-	-Wno-switch-enum					\
-	-Wno-deprecated-declarations				\
-	-Wno-inline						\
-	-I${top_srcdir}/lib
-
-AM_CPPFLAGS=							\
-	$(CODE_COVERAGE_CPPFLAGS)
-
-AM_CXXFLAGS=							\
-	$(WARN_CXXFLAGS)					\
-	$(GLIB_CFLAGS)						\
-	$(ASAN_CXXFLAGS)					\
-	$(CODE_COVERAGE_CFLAGS)					\
-	-I${top_srcdir}/lib
-
-AM_LDFLAGS=							\
-	$(ASAN_LDFLAGS)
-
-noinst_LTLIBRARIES=						\
-	libmu-utils.la
-
-libmu_utils_la_SOURCES=						\
-	mu-async-queue.hh					\
-	mu-command-parser.cc					\
-	mu-command-parser.hh					\
-	mu-error.hh						\
-	mu-logger.cc						\
-	mu-logger.hh						\
-	mu-option.hh						\
-	mu-option.cc						\
-	mu-readline.cc						\
-	mu-readline.hh						\
-	mu-result.hh						\
-	mu-sexp.cc						\
-	mu-sexp.hh						\
-	mu-util.c						\
-	mu-util.h						\
-	mu-utils.cc						\
-	mu-utils.hh						\
-	mu-utils-format.hh					\
-	mu-xapian-utils.hh
-
-libmu_utils_la_LIBADD=						\
-	$(GLIB_LIBS)						\
-	$(READLINE_LIBS)					\
-	$(CODE_COVERAGE_LIBS)
-
-include $(top_srcdir)/aminclude_static.am