GH-126599: Remove the PyOptimizer API (GH-129194)

Python/sysmodule.c

@@ -2265,9 +2265,7 @@ sys_activate_stack_trampoline_impl(PyObject *module, const char *backend)
 {
 #ifdef PY_HAVE_PERF_TRAMPOLINE
 #ifdef _Py_JIT
-    _PyOptimizerObject* optimizer = _Py_GetOptimizer();
-    if (optimizer != NULL) {
-        Py_DECREF(optimizer);
+    if (_PyInterpreterState_GET()->jit) {
         PyErr_SetString(PyExc_ValueError, "Cannot activate the perf trampoline if the JIT is active");
         return NULL;
     }