doc: Remove manpage for upgrade-windowmaker-defaults script.

This script is only available in the Debian package, is very out of date,
and will be soon be removed.

doc/Makefile.am

@@ -8,7 +8,6 @@ dist_man_MANS = \
 	getstyle.1 \
 	seticons.1 \
 	setstyle.1 \
-	upgrade-windowmaker-defaults.8 \
 	wdread.1 \
 	wdwrite.1 \
 	WindowMaker.1 \

doc/upgrade-windowmaker-defaults.8

@@ -1,23 +0,0 @@
-.TH "Window Maker" 8 "March 2001" "Debian Project"
-.SH NAME
-upgrade-windowmaker-defaults \- Convert old wmaker configuration files
-.SH SYNOPSIS
-.B upgrade-windowmaker-defaults
-.SH DESCRIPTION
-Some old versions of Window Maker used different names or different syntax
-for some configuration options, which in turn used to cause some newer
-versions of Window Maker not to start up correctly.  Nowadays this is no
-longer a problem but this utility is provided to support upgrades from these
-old versions of Window Maker.
-.SH SEE ALSO
-The Window Maker User Guide
-.PP
-The Window Maker FAQ
-.PP
-The Window Maker changelog and NEWS files (in /usr/share/doc/wmaker)
-.PP
-.BR wmaker (1)
-.SH AUTHOR
-This utility and manpage were written by Marcelo E. Magallon,
-<mmagallo@debian.org>, for the Debian Project.  It might be used freely by
-others.