fix(jit): avoid extern on _Py_jit_entry definition

Author: ashm-dev

Python/ceval.c

@@ -1359,9 +1359,9 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int
 }
 #ifdef _Py_TIER2
 #ifdef _Py_JIT
-PyAPI_DATA(_PyJitEntryFuncPtr) _Py_jit_entry = _PyJIT_Entry;
+_PyJitEntryFuncPtr _Py_jit_entry = _PyJIT_Entry;
 #else
-PyAPI_DATA(_PyJitEntryFuncPtr) _Py_jit_entry = _PyTier2Interpreter;
+_PyJitEntryFuncPtr _Py_jit_entry = _PyTier2Interpreter;
 #endif
 #endif