Make extraclean return tree to pristine state by deleting more

Make extraclean return tree to pristine state by deleting more

* src/Makefile.in (extraclean): Remove TAGS and config.in.

* Makefile.in (extraclean): Remove info, configure and
emacsver.texi in extraclean.
* admin/unidata/Makefile.in (extraclean): Make it depend on
distclean to remove .elc files.

* leim/Makefile.in (extraclean): Depend on bootstrap-clean to
remove generated .el files.

* lib/Makefile.in (extraclean): Added target to remove sys
directory and run distclean.

* lisp/Makefile.in (extraclean): Also remove loaddefs*.el~ files.