bpo-33958: Doc: Remove unused variable in example (GH-7927)

(cherry picked from commit 62b6cea6b843076cfd6631eccd9347e8c3dd9458)

Co-authored-by: Srinivas Reddy Thatiparthy (శ్రీనివాస్ రెడ్డి తాటిపర్తి) <srinivasreddy@users.noreply.github.com>
diff --git a/Doc/includes/run-func.c b/Doc/includes/run-func.c
index ead7bdd..9caf1fd 100644
--- a/Doc/includes/run-func.c
+++ b/Doc/includes/run-func.c
@@ -3,7 +3,7 @@
 int
 main(int argc, char *argv[])
 {
-    PyObject *pName, *pModule, *pDict, *pFunc;
+    PyObject *pName, *pModule, *pFunc;
     PyObject *pArgs, *pValue;
     int i;