Removed hfsrunning() macro. This means MacPython won't run on MacOS 5 (oops,...

Removed hfsrunning() macro. This means MacPython won't run on MacOS 5 (oops, System 5) or earlier anymore:-)

Mac/Include/macdefs.h

@@ -21,9 +21,6 @@
 /* We may be able to use a std routine in think, don't know */
 unsigned char *Pstring(char *);
 
-/* Macro to find out whether we can do HFS-only calls: */
-#define FSFCBLen (* (short *) 0x3f6)
-#define hfsrunning() (FSFCBLen > 0)
 
 /* Universal constants: */
 #define MAXPATH 256