Simlify support for older compilers.
Simlify support for older compilers.

Don't use _Nullable

mfikes/planck,mfikes/planck,slipset/planck,mfikes/planck,ericstewart/planck,mnespor/planck,mnespor/planck,mfikes/planck,mfikes/planck,ericstewart/planck,slipset/planck,mfikes/planck,slipset/planck,ericstewart/planck,mnespor/planck,slipset/planck,slipset/planck