Revert "Fix C89 compatibility for native msvc compile support."

This reverts commit 553c11d5072479fc74cf84f70fd1c88d9368563d.
Fix libx264 compatibility with msvc.
Revert "Fix C89 compatibility of cli program for native msvc compilation."

This reverts commit 85f35ea31e00e26a9f945a3005cdeb6d80f0f3f2.
Fix x264cli compatibility with msvc.