remove un-necessary casts

Author: ynir3

Objects/exceptions.c

@@ -1911,18 +1911,18 @@ static PyTypeObject _PyExc_ImportError = {
     PyVarObject_HEAD_INIT(NULL, 0)
     .tp_name = "ImportError",
     .tp_basicsize = sizeof(PyImportErrorObject),
-    .tp_dealloc = (destructor)ImportError_dealloc,
+    .tp_dealloc = ImportError_dealloc,
     .tp_repr = ImportError_repr,
-    .tp_str = (reprfunc)ImportError_str,
+    .tp_str = ImportError_str,
     .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC,
     .tp_doc = PyDoc_STR("Import can't find module, or can't find name in module."),
-    .tp_traverse = (traverseproc)ImportError_traverse,
-    .tp_clear = (inquiry)ImportError_clear,
+    .tp_traverse = ImportError_traverse,
+    .tp_clear = ImportError_clear,
     .tp_methods = ImportError_methods,
     .tp_members = ImportError_members,
     .tp_base = &_PyExc_Exception,
     .tp_dictoffset = offsetof(PyImportErrorObject, dict),
-    .tp_init = (initproc)ImportError_init,
+    .tp_init = ImportError_init,
 };
 PyObject *PyExc_ImportError = (PyObject *)&_PyExc_ImportError;