[Extra null pointer checks are not needed](https://stackoverflow.com/questions/18775608/free-a-null-pointer-anyway-or-check-first "Free a null pointer anyway or check first?") in [the function “clear_device_names”](https://github.com/PolySync/oscc/blob/2a2f1122e620dfe0767206a2ea81ea8a7ca42552/api/src/oscc.c#L1019 "Update candidate: clear_device_names()").
