Delay adding __builtin_memset() to the builtins hash until we've figured out what type size_t corresponds to.
Delay adding __builtin_memset() to the builtins hash until we've
figured out what type size_t corresponds to.

Remove an unused function.

samuelhavron/obliv-c,samuelhavron/obliv-c,samuelhavron/obliv-c,samuelhavron/obliv-c