[Extra null pointer checks are not needed in functions](https://isocpp.org/wiki/faq/freestore-mgmt#delete-handles-null "Do I need to check for null before delete p?") like the following. - [CompareRenderer](https://github.com/silnrsi/graphite/blob/2f45277584beae312f1f4eea2b8706c44a4ae8d2/tests/comparerenderer/CompareRenderer.cpp#L87 "Destructor for CompareRenderer") - [Pass](https://github.com/silnrsi/graphite/blob/27572742003b93dc53dc02c01c237b72c6c25f54/src/Pass.cpp#L65 "Destructor for Pass")
