remove unused variable
diff --git a/Objects/setobject.c b/Objects/setobject.c
index 69eb889..3abeefb 100644
--- a/Objects/setobject.c
+++ b/Objects/setobject.c
@@ -1931,7 +1931,7 @@
 static PyObject *
 set_discard(PySetObject *so, PyObject *key)
 {
-    PyObject *tmpkey, *result;
+    PyObject *tmpkey;
     int rv;
 
     rv = set_discard_key(so, key);