Remove xp_core.h & xp_mem.h and all build references to them.

Remove cruft from xp_mcom.h & xp_str.h.
Bug #38061 r=brendan sr=alecf a=valeski


git-svn-id: svn://10.0.0.236/trunk@117612 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/extensions/python/xpcom/src/loader/pyloader.cpp

@@ -25,7 +25,6 @@
 // the xpcom "components" directory.  Simply locates and loads the standard
 // _xpcom support module and transfers control to that.
 
-#include "xp_core.h"
 #include "nsIComponentLoader.h"
 #include "nsIRegistry.h"
 #include "nsISupports.h"