gh-126599: Refactor the _PyOptimizer APIs

Include/internal/pycore_optimizer.h

@@ -98,11 +98,6 @@ struct _PyOptimizerObject {
 };
 
 /** Test support **/
-typedef struct {
-    _PyOptimizerObject base;
-    int64_t count;
-} _PyCounterOptimizerObject;
-
 _PyOptimizerObject *_Py_SetOptimizer(PyInterpreterState *interp, _PyOptimizerObject* optimizer);
 
 
@@ -119,7 +114,6 @@ PyAPI_FUNC(void) _Py_Executor_DependsOn(_PyExecutorObject *executor, void *obj);
 // Export for '_testinternalcapi' shared extension.
 PyAPI_FUNC(_PyOptimizerObject *) _Py_GetOptimizer(void);
 PyAPI_FUNC(int) _Py_SetTier2Optimizer(_PyOptimizerObject* optimizer);
-PyAPI_FUNC(PyObject *) _PyOptimizer_NewCounter(void);
 PyAPI_FUNC(PyObject *) _PyOptimizer_NewUOpOptimizer(void);
 
 #define _Py_MAX_ALLOWED_BUILTINS_MODIFICATIONS 3
@@ -150,8 +144,6 @@ int _Py_uop_analyze_and_optimize(struct _PyInterpreterFrame *frame,
     _PyUOpInstruction *trace, int trace_len, int curr_stackentries,
     _PyBloomFilter *dependencies);
 
-extern PyTypeObject _PyCounterExecutor_Type;
-extern PyTypeObject _PyCounterOptimizer_Type;
 extern PyTypeObject _PyDefaultOptimizer_Type;
 extern PyTypeObject _PyUOpExecutor_Type;
 extern PyTypeObject _PyUOpOptimizer_Type;