* m4/m4.m4: Remove.

* configure.in: M4 is no longer needed, but autom4te is.
* tests/Makefile.am (AUTOTEST): Don't define AUTOM4TE, let
AC_SUBST do it.

tests/Makefile.am

@@ -28,7 +28,6 @@ TESTSUITE_AT = \
 	output.at calc.at regression.at
 TESTSUITE = $(srcdir)/testsuite
 
-AUTOM4TE = autom4te
 AUTOTEST = $(AUTOM4TE) --language=autotest
 $(srcdir)/$(TESTSUITE): $(TESTSUITE_AT)
 	$(AUTOTEST) -I $(srcdir) testsuite.at -o $@.tmp

tests/Makefile.in

@@ -63,6 +63,7 @@ EXEEXT = @EXEEXT@
 OBJEXT = @OBJEXT@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 AMTAR = @AMTAR@
+AUTOM4TE = @AUTOM4TE@
 AWK = @AWK@
 BUILD_INCLUDED_LIBINTL = @BUILD_INCLUDED_LIBINTL@
 CATALOGS = @CATALOGS@
@@ -83,7 +84,6 @@ INTLOBJS = @INTLOBJS@
 INTL_LIBTOOL_SUFFIX_PREFIX = @INTL_LIBTOOL_SUFFIX_PREFIX@
 LIBICONV = @LIBICONV@
 LIBOBJS = @LIBOBJS@
-M4 = @M4@
 MKINSTALLDIRS = @MKINSTALLDIRS@
 MSGFMT = @MSGFMT@
 PACKAGE = @PACKAGE@
@@ -110,7 +110,6 @@ TESTSUITE_AT = \
 
 TESTSUITE = $(srcdir)/testsuite
 
-AUTOM4TE = autom4te
 AUTOTEST = $(AUTOM4TE) --language=autotest
 subdir = tests
 mkinstalldirs = $(SHELL) $(top_srcdir)/config/mkinstalldirs