m4: delete several obsolete macros Support for several obsolescent macros has already been deprecated, and their removal already announced in the documentation and in the NEWS file. It's now time to finally remove them. * m4/dmalloc.m4 (fp_WITH_DMALLOC): Don't define anymore. * m4/maintainer.m4 (jm_MAINTAINER_MODE): Likewise. * m4/lispdir.m4 (ud_PATH_LISPDIR): Likewise. * m4/protos.m4 (fp_C_PROTOTYPES): Likewise. * m4/ccstdc.m4: Delete file. * m4/header.m4: Likewise. * m4/obsol-gt.m4: Likewise. * m4/obsol-lt.m4: Likewise. * m4/obsolete.m4: Likewise. * Makefile.am (dist_automake_ac_DATA): Don't list the deleted '.m4' files anymore. * t/confh.sh: Use 'AC_CONFIG_HEADERS' instead of the now-removed AM_CONFIG_HEADER. * t/confh.sh: Likewise. * t/confh4.sh: Likewise. * t/confh6.sh: Likewise. * t/confh7.sh: Likewise. * t/confh8.sh: Likewise. * t/confsub.sh: Likewise. * t/stamph2.sh: Likewise. * t/subdir6.sh: Likewise. * t/autohdr2.sh: Remove as obsolete. * t/obsolete.sh: Likewise. * t/list-of-tests.mk. Don't list the deleted test cases anymore. * NEWS: Update. * doc/automake.texi: Likewise. In particular ... (Obsolete Macros): Remove this node altogether. Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>