[patch] eliminate separate reference to tcl8.1, tk8.1

[DJ Delorie]

> 2002-05-19  Nathanael Nerode  <neroden@twcny.rr.com>
> 	* Makefile.in: Eliminate version-specific references to tcl8.1, tk8.1.
> 	* configure.in: Eliminate version-specific references to tcl8.1, tk8.1.

Approved and applied.  Thanks!