MacPython-OS9 has had an abort() function for quite a while now, so there's no…

MacPython-OS9 has had an abort() function for quite a while now, so there's no reason to stall in an endless loop, just call abort() on a fatal error.

Python/pythonrun.c

@@ -1323,9 +1323,6 @@ void
 Py_FatalError(const char *msg)
 {
 	fprintf(stderr, "Fatal Python error: %s\n", msg);
-#ifdef macintosh
-	for (;;);
-#endif
 #ifdef MS_WINDOWS
 	OutputDebugString("Fatal Python error: ");
 	OutputDebugString(msg);