[Code Clean] Remove deadcodes about Python3.9 [3/N] (pytorch#163629)

As the title stated.
Pull Request resolved: pytorch#163629
Approved by: https://github.com/albanD
ghstack dependencies: pytorch#163626, pytorch#163627

Author: fffrog

torch/csrc/utils/pythoncapi_compat.h

@@ -68,16 +68,6 @@ static inline PyObject* _Py_XNewRef(PyObject *obj)
 #endif
 
 
-// bpo-39573 added Py_SET_REFCNT() to Python 3.9.0a4
-#if PY_VERSION_HEX < 0x030900A4 && !defined(Py_SET_REFCNT)
-static inline void _Py_SET_REFCNT(PyObject *ob, Py_ssize_t refcnt)
-{
-    ob->ob_refcnt = refcnt;
-}
-#define Py_SET_REFCNT(ob, refcnt) _Py_SET_REFCNT(_PyObject_CAST(ob), refcnt)
-#endif
-
-
 // Py_SETREF() and Py_XSETREF() were added to Python 3.5.2.
 // It is excluded from the limited C API.
 #if (PY_VERSION_HEX < 0x03050200 && !defined(Py_SETREF)) && !defined(Py_LIMITED_API)
@@ -114,37 +104,6 @@ static inline void _Py_SET_REFCNT(PyObject *ob, Py_ssize_t refcnt)
 #  define Py_IsFalse(x) Py_Is(x, Py_False)
 #endif
 
-
-// bpo-39573 added Py_SET_TYPE() to Python 3.9.0a4
-#if PY_VERSION_HEX < 0x030900A4 && !defined(Py_SET_TYPE)
-static inline void _Py_SET_TYPE(PyObject *ob, PyTypeObject *type)
-{
-    ob->ob_type = type;
-}
-#define Py_SET_TYPE(ob, type) _Py_SET_TYPE(_PyObject_CAST(ob), type)
-#endif
-
-
-// bpo-39573 added Py_SET_SIZE() to Python 3.9.0a4
-#if PY_VERSION_HEX < 0x030900A4 && !defined(Py_SET_SIZE)
-static inline void _Py_SET_SIZE(PyVarObject *ob, Py_ssize_t size)
-{
-    ob->ob_size = size;
-}
-#define Py_SET_SIZE(ob, size) _Py_SET_SIZE((PyVarObject*)(ob), size)
-#endif
-
-
-// bpo-40421 added PyFrame_GetCode() to Python 3.9.0b1
-#if PY_VERSION_HEX < 0x030900B1 || defined(PYPY_VERSION)
-static inline PyCodeObject* PyFrame_GetCode(PyFrameObject *frame)
-{
-    assert(frame != _Py_NULL);
-    assert(frame->f_code != _Py_NULL);
-    return _Py_CAST(PyCodeObject*, Py_NewRef(frame->f_code));
-}
-#endif
-
 static inline PyCodeObject* _PyFrame_GetCodeBorrow(PyFrameObject *frame)
 {
     PyCodeObject *code = PyFrame_GetCode(frame);
@@ -153,15 +112,6 @@ static inline PyCodeObject* _PyFrame_GetCodeBorrow(PyFrameObject *frame)
 }
 
 
-// bpo-40421 added PyFrame_GetBack() to Python 3.9.0b1
-#if PY_VERSION_HEX < 0x030900B1 && !defined(PYPY_VERSION)
-static inline PyFrameObject* PyFrame_GetBack(PyFrameObject *frame)
-{
-    assert(frame != _Py_NULL);
-    return _Py_CAST(PyFrameObject*, Py_XNewRef(frame->f_back));
-}
-#endif
-
 #if !defined(PYPY_VERSION)
 static inline PyFrameObject* _PyFrame_GetBackBorrow(PyFrameObject *frame)
 {
@@ -279,26 +229,6 @@ PyFrame_GetVarString(PyFrameObject *frame, const char *name)
 #endif
 
 
-// bpo-39947 added PyThreadState_GetInterpreter() to Python 3.9.0a5
-#if PY_VERSION_HEX < 0x030900A5 || defined(PYPY_VERSION)
-static inline PyInterpreterState *
-PyThreadState_GetInterpreter(PyThreadState *tstate)
-{
-    assert(tstate != _Py_NULL);
-    return tstate->interp;
-}
-#endif
-
-
-// bpo-40429 added PyThreadState_GetFrame() to Python 3.9.0b1
-#if PY_VERSION_HEX < 0x030900B1 && !defined(PYPY_VERSION)
-static inline PyFrameObject* PyThreadState_GetFrame(PyThreadState *tstate)
-{
-    assert(tstate != _Py_NULL);
-    return _Py_CAST(PyFrameObject *, Py_XNewRef(tstate->frame));
-}
-#endif
-
 #if !defined(PYPY_VERSION)
 static inline PyFrameObject*
 _PyThreadState_GetFrameBorrow(PyThreadState *tstate)
@@ -310,35 +240,6 @@ _PyThreadState_GetFrameBorrow(PyThreadState *tstate)
 #endif
 
 
-// bpo-39947 added PyInterpreterState_Get() to Python 3.9.0a5
-#if PY_VERSION_HEX < 0x030900A5 || defined(PYPY_VERSION)
-static inline PyInterpreterState* PyInterpreterState_Get(void)
-{
-    PyThreadState *tstate;
-    PyInterpreterState *interp;
-
-    tstate = PyThreadState_GET();
-    if (tstate == _Py_NULL) {
-        Py_FatalError("GIL released (tstate is NULL)");
-    }
-    interp = tstate->interp;
-    if (interp == _Py_NULL) {
-        Py_FatalError("no current interpreter");
-    }
-    return interp;
-}
-#endif
-
-
-// bpo-39947 added PyInterpreterState_Get() to Python 3.9.0a6
-#if 0x030700A1 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x030900A6 && !defined(PYPY_VERSION)
-static inline uint64_t PyThreadState_GetID(PyThreadState *tstate)
-{
-    assert(tstate != _Py_NULL);
-    return tstate->id;
-}
-#endif
-
 // bpo-43760 added PyThreadState_EnterTracing() to Python 3.11.0a2
 #if PY_VERSION_HEX < 0x030B00A2 && !defined(PYPY_VERSION)
 static inline void PyThreadState_EnterTracing(PyThreadState *tstate)
@@ -368,27 +269,6 @@ static inline void PyThreadState_LeaveTracing(PyThreadState *tstate)
 #endif
 
 
-// bpo-37194 added PyObject_CallNoArgs() to Python 3.9.0a1
-// PyObject_CallNoArgs() added to PyPy 3.9.16-v7.3.11
-#if !defined(PyObject_CallNoArgs) && PY_VERSION_HEX < 0x030900A1
-static inline PyObject* PyObject_CallNoArgs(PyObject *func)
-{
-    return PyObject_CallFunctionObjArgs(func, NULL);
-}
-#endif
-
-
-// bpo-39245 made PyObject_CallOneArg() public (previously called
-// _PyObject_CallOneArg) in Python 3.9.0a4
-// PyObject_CallOneArg() added to PyPy 3.9.16-v7.3.11
-#if !defined(PyObject_CallOneArg) && PY_VERSION_HEX < 0x030900A4
-static inline PyObject* PyObject_CallOneArg(PyObject *func, PyObject *arg)
-{
-    return PyObject_CallFunctionObjArgs(func, arg, NULL);
-}
-#endif
-
-
 // bpo-1635741 added PyModule_AddObjectRef() to Python 3.10.0a3
 #if PY_VERSION_HEX < 0x030A00A3
 static inline int
@@ -414,58 +294,6 @@ PyModule_AddObjectRef(PyObject *module, const char *name, PyObject *value)
 #endif
 
 
-// bpo-40024 added PyModule_AddType() to Python 3.9.0a5
-#if PY_VERSION_HEX < 0x030900A5
-static inline int PyModule_AddType(PyObject *module, PyTypeObject *type)
-{
-    const char *name, *dot;
-
-    if (PyType_Ready(type) < 0) {
-        return -1;
-    }
-
-    // inline _PyType_Name()
-    name = type->tp_name;
-    assert(name != _Py_NULL);
-    dot = strrchr(name, '.');
-    if (dot != _Py_NULL) {
-        name = dot + 1;
-    }
-
-    return PyModule_AddObjectRef(module, name, _PyObject_CAST(type));
-}
-#endif
-
-
-// bpo-40241 added PyObject_GC_IsTracked() to Python 3.9.0a6.
-// bpo-4688 added _PyObject_GC_IS_TRACKED() to Python 2.7.0a2.
-#if PY_VERSION_HEX < 0x030900A6 && !defined(PYPY_VERSION)
-static inline int PyObject_GC_IsTracked(PyObject* obj)
-{
-    return (PyObject_IS_GC(obj) && _PyObject_GC_IS_TRACKED(obj));
-}
-#endif
-
-// bpo-40241 added PyObject_GC_IsFinalized() to Python 3.9.0a6.
-// bpo-18112 added _PyGCHead_FINALIZED() to Python 3.4.0 final.
-#if PY_VERSION_HEX < 0x030900A6 && PY_VERSION_HEX >= 0x030400F0 && !defined(PYPY_VERSION)
-static inline int PyObject_GC_IsFinalized(PyObject *obj)
-{
-    PyGC_Head *gc = _Py_CAST(PyGC_Head*, obj) - 1;
-    return (PyObject_IS_GC(obj) && _PyGCHead_FINALIZED(gc));
-}
-#endif
-
-
-// bpo-39573 added Py_IS_TYPE() to Python 3.9.0a4
-#if PY_VERSION_HEX < 0x030900A4 && !defined(Py_IS_TYPE)
-static inline int _Py_IS_TYPE(PyObject *ob, PyTypeObject *type) {
-    return Py_TYPE(ob) == type;
-}
-#define Py_IS_TYPE(ob, type) _Py_IS_TYPE(_PyObject_CAST(ob), type)
-#endif
-
-
 // bpo-46906 added PyFloat_Pack2() and PyFloat_Unpack2() to Python 3.11a7.
 // bpo-11734 added _PyFloat_Pack2() and _PyFloat_Unpack2() to Python 3.6.0b1.
 // Python 3.11a2 moved _PyFloat_Pack2() and _PyFloat_Unpack2() to the internal
@@ -592,81 +420,6 @@ static inline Py_ssize_t PyVectorcall_NARGS(size_t n)
 #endif
 
 
-// gh-105922 added PyObject_Vectorcall() to Python 3.9.0a4
-#if PY_VERSION_HEX < 0x030900A4
-static inline PyObject*
-PyObject_Vectorcall(PyObject *callable, PyObject *const *args,
-                     size_t nargsf, PyObject *kwnames)
-{
-#if PY_VERSION_HEX >= 0x030800B1 && !defined(PYPY_VERSION)
-    // bpo-36974 added _PyObject_Vectorcall() to Python 3.8.0b1
-    return _PyObject_Vectorcall(callable, args, nargsf, kwnames);
-#else
-    PyObject *posargs = NULL, *kwargs = NULL;
-    PyObject *res;
-    Py_ssize_t nposargs, nkwargs, i;
-
-    if (nargsf != 0 && args == NULL) {
-        PyErr_BadInternalCall();
-        goto error;
-    }
-    if (kwnames != NULL && !PyTuple_Check(kwnames)) {
-        PyErr_BadInternalCall();
-        goto error;
-    }
-
-    nposargs = (Py_ssize_t)PyVectorcall_NARGS(nargsf);
-    if (kwnames) {
-        nkwargs = PyTuple_GET_SIZE(kwnames);
-    }
-    else {
-        nkwargs = 0;
-    }
-
-    posargs = PyTuple_New(nposargs);
-    if (posargs == NULL) {
-        goto error;
-    }
-    if (nposargs) {
-        for (i=0; i < nposargs; i++) {
-            PyTuple_SET_ITEM(posargs, i, Py_NewRef(*args));
-            args++;
-        }
-    }
-
-    if (nkwargs) {
-        kwargs = PyDict_New();
-        if (kwargs == NULL) {
-            goto error;
-        }
-
-        for (i = 0; i < nkwargs; i++) {
-            PyObject *key = PyTuple_GET_ITEM(kwnames, i);
-            PyObject *value = *args;
-            args++;
-            if (PyDict_SetItem(kwargs, key, value) < 0) {
-                goto error;
-            }
-        }
-    }
-    else {
-        kwargs = NULL;
-    }
-
-    res = PyObject_Call(callable, posargs, kwargs);
-    Py_DECREF(posargs);
-    Py_XDECREF(kwargs);
-    return res;
-
-error:
-    Py_DECREF(posargs);
-    Py_XDECREF(kwargs);
-    return NULL;
-#endif
-}
-#endif
-
-
 // gh-106521 added PyObject_GetOptionalAttr() and
 // PyObject_GetOptionalAttrString() to Python 3.13.0a1
 #if PY_VERSION_HEX < 0x030D00A1