Disable building of dtudcfonted and dtudcexch

This software has a variety of problems, like including renamed X11
header files, and other nuttery.

These programs also have a very limited use, I doubt most people even
know what they are for or will miss them.

This commit prevents them from being built and installed.  If no-one
volunteers to get these into decent shape after the next release, they
will be removed from the repository.

cde/databases/CDE-LOC.src

@@ -325,11 +325,6 @@ programs/localized/%_LANG_%/app-defaults/Dtbuilder
         install_target = /usr/dt/app-defaults/%_LANG_%/Dtbuilder
 }
 XCOMM 
-programs/localized/%_LANG_%/app-defaults/Dtudcfonted
-{ default
-        install_target = /usr/dt/app-defaults/%_LANG_%/Dtudcfonted
-}
-XCOMM 
 XCOMM >>-----------------------------
 XCOMM  appmanager
 XCOMM <<-----------------------------