restored c binding test cleanup

run_c_binding_test.sh

@@ -19,8 +19,8 @@ echo "checking results (they should be identical)"
 diff -q -s  binding_test_scratch c_bindings/test_answers.txt
 
 echo "cleaning up"
-#rm pocketpy_c.o
+rm pocketpy_c.o
 rm test.o
 rm binding_test_scratch
-#rm c_binding_test
+rm c_binding_test