rts/IPE: Don't expose helper in header

rts/IPE.c

@@ -79,6 +79,7 @@ static HashTable *ipeMap = NULL;
 static IpeBufferListNode *ipeBufferList = NULL;
 
 static void decompressIPEBufferListNodeIfCompressed(IpeBufferListNode*);
+static void updateIpeMap(void);
 
 #if defined(THREADED_RTS)
 

rts/IPE.h

@@ -14,7 +14,6 @@
 #include "BeginPrivate.h"
 
 void dumpIPEToEventLog(void);
-void updateIpeMap(void);
 void initIpe(void);
 void exitIpe(void);