Remove some files that autoreconf can supply.

Remove some files that autoreconf can supply.
Ref: http://lists.gnu.org/archive/html/emacs-devel/2011-03/msg00863.html

* compile, config.guess, config.sub, depcomp, install-sh, missing:
Remove; autoreconf can supply them.

* Makefile.in (sync-from-gnulib): Don't sync config.sub,
config.guess, install-sh.  Pass -i to autoreconf.

* autogen/update_autogen (genfiles): Add compile, config.guess,
config.sub, depcomp, install-sh, missing.  Pass -i to autoreconf.
Discard non-error output from autoreconf in -q case.

* autogen/compile, autogen/config.guess, autogen/config.sub:
* autogen/depcomp, autogen/install-sh, autogen/missing: New files.

* autogen/copy_autogen: Add compile, config.guess, config.sub, depcomp,
install-sh, missing.

* autogen/README: Add compile, config.guess, config.sub, depcomp,
install-sh, missing.

* INSTALL.BZR, admin/make-tarball.txt: Add -i to autoreconf args.

* .bzrignore: Add compile, config.guess, config.sub, depcomp,
install-sh, missing.