Comment out the old SQSTD_STREAM_TYPE_TAG using number

include/sqstdio.h

@@ -4,7 +4,7 @@
 
 #ifdef __cplusplus
 
-#define SQSTD_STREAM_TYPE_TAG 0x80000000
+//#define SQSTD_STREAM_TYPE_TAG 0x80000000
 
 struct SQStream {
 	virtual SQInteger Read(void *buffer, SQInteger size) = 0;