linux: build all languages by default again

Someday we should be able to detect which languages are installed and
only build support for those.  Until then, build them all.

cde/config/cf/site.def

@@ -123,13 +123,12 @@ XCOMM  or building non-C locales will cause build failures.
 #endif
 
 #if defined(LinuxArchitecture)
-XCOMM Make sure you have installed the de_DE, es_ES, fr_FR and it_IT locales.
-XCOMM  or building non-C locales will cause build failures.
-XCOMM DtLocalesToBuild: de_DE.ISO8859-1 es_ES.ISO8859-1 fr_FR.ISO8859-1 it_IT.ISO8859-1 en_US.UTF-8
-# if !defined(DtLocalesToBuild)
-#  define DtLocalesToBuild en_US.UTF-8
-# endif
-# define UTF8_NLS_SUPPORT
+
+XCOMM Make sure you have installed the de_DE, es_ES, fr_FR and it_IT
+XCOMM ISO8859-1 locales or building non-C locales will cause build failures.
+
+# define DtLocalesToBuild de_DE.ISO8859-1 es_ES.ISO8859-1 fr_FR.ISO8859-1 it_IT.ISO8859-1 en_US.UTF-8
+#define UTF8_NLS_SUPPORT
 #endif
 
 #ifdef SunArchitecture