Part of my mailnews reduce disk footprint cleanup effort. Don't include mkutils.h. Remove extern for out of memory which we used to get from allxpstr.

mailnews/news/src/nsNNTPArticleSet.cpp

@@ -17,22 +17,17 @@
  */
 
 #include "msgCore.h"    // precompiled header...
+#include "nntpCore.h"
 
 #include "nsNNTPArticleSet.h"
 #include "nsINNTPHost.h"
 
-// #include "mkutils.h"
 #include <ctype.h>
 #include "prmem.h"
 #include "prlog.h"
 #include "prprf.h"
 #include "plstr.h"
 
-extern "C" {
-	extern int MK_OUT_OF_MEMORY;
-}
-
-
 /* A compressed encoding for sets of article.  This is usually for lines from
    the newsrc, which have article lists like