merge Include/my*.h into Include/pyport.h

marked my*.h as obsolete
diff --git a/Python/hypot.c b/Python/hypot.c
index b21deea..939dedd 100644
--- a/Python/hypot.c
+++ b/Python/hypot.c
@@ -1,8 +1,7 @@
 /* hypot() replacement */
 
 #include "config.h"
-#include "myproto.h"
-#include "mymath.h"
+#include "pyport.h"
 
 double hypot(double x, double y)
 {