replace Python aliases for standard integer types with the standard integer types (#17884)
diff --git a/Include/pytime.h b/Include/pytime.h
index 859321b..595fafc 100644
--- a/Include/pytime.h
+++ b/Include/pytime.h
@@ -13,16 +13,12 @@
 extern "C" {
 #endif
 
-#ifdef PY_INT64_T
 /* _PyTime_t: Python timestamp with subsecond precision. It can be used to
    store a duration, and so indirectly a date (related to another date, like
    UNIX epoch). */
-typedef PY_INT64_T _PyTime_t;
+typedef int64_t _PyTime_t;
 #define _PyTime_MIN PY_LLONG_MIN
 #define _PyTime_MAX PY_LLONG_MAX
-#else
-#  error "_PyTime_t need signed 64-bit integer type"
-#endif
 
 typedef enum {
     /* Round towards minus infinity (-inf).