[Patch/libiberty]: Remove warnings from pex-win32.c

[DJ Delorie]

> 2003-07-04  Danny Smith  <dannysmith@users.sourceforge.net>
> 
> 	* pex-win32.c (pexecute): Mark parameters this_pname and
> 	temp_base as unused. Remove unused variables retries,
> 	sleep_interval. Initialize org_stdin, org_stdout.
> 	(pwait): Mark parameter flags as unused.

Ok.