Drop unused variable.
diff --git a/Modules/zipimport.c b/Modules/zipimport.c
index 604363e..fd89e9b 100644
--- a/Modules/zipimport.c
+++ b/Modules/zipimport.c
@@ -439,7 +439,6 @@
     ZipImporter *self = (ZipImporter *)obj;
     PyObject *path, *key;
 #ifdef ALTSEP
-    PyObject *tmp;
     _Py_IDENTIFIER(replace);
 #endif
     PyObject *toc_entry;