remove unused export

Author: picnixz

Modules/_testinternalcapi.c

@@ -34,7 +34,7 @@
 #include "pycore_pyerrors.h"      // _PyErr_ChainExceptions1()
 #include "pycore_pylifecycle.h"   // _PyInterpreterConfig_InitFromDict()
 #include "pycore_pystate.h"       // _PyThreadState_GET()
-#include "pycore_runtime_structs.h" // _PY_NSMALLPOSINTS, _PY_NSMALLNEGINTS
+#include "pycore_runtime_structs.h" // _PY_NSMALLPOSINTS
 #include "pycore_unicodeobject.h" // _PyUnicode_TransformDecimalAndSpaceToASCII()
 
 #include "clinic/_testinternalcapi.c.h"
@@ -2581,10 +2581,6 @@ module_exec(PyObject *module)
         return 1;
     }
 
-    if (PyModule_AddIntMacro(module, _PY_NSMALLNEGINTS) < 0) {
-        return 1;
-    }
-
     return 0;
 }