remove a few more leftover files at top level

[Mike Stump]

I checked the below patch in.  Combined with two previous patches, a
make realclean, really does clean everything that was built.  There
still are leftovers from a make check that are not cleaned up in
gcc/testsuite directory, but those should be cleanuped up by dejagnu.

2000-12-07  Mike Stump  <mrs@wrs.com>

	* Makefile.in (local-distclean): Remove leftover built files.

Doing diffs in ChangeLog~:
--------------
Doing diffs in Makefile.in.~1~:
*** Makefile.in.~1~	Mon Nov 20 16:39:08 2000
--- Makefile.in	Thu Dec  7 19:24:37 2000
*************** local-distclean:
*** 1025,1030 ****
--- 1025,1035 ----
  	-if [ "$(TARGET_SUBDIR)" != "." ]; then \
  	  rm -rf $(TARGET_SUBDIR); \
  	else true; fi
+ 	rm -f texinfo/po/Makefile texinfo/po/Makefile.in texinfo/info/Makefile
+ 	rm -f texinfo/doc/Makefile texinfo/po/POTFILES
+ 	-rmdir texinfo/doc texinfo/info texinfo/intl texinfo/lib 2>/dev/null
+ 	-rmdir texinfo/makeinfo texinfo/po texinfo/util 2>/dev/null
+ 	-rmdir gcc libiberty texinfo zlib 2>/dev/null
  
  local-maintainer-clean:
  	@echo "This command is intended for maintainers to use;"
--------------