Remove no longer needed stdint compatibility defines

[nikic]

As we're using C99, we can assume these exist.

[nikic]

@Girgias Somehow I thought you already did this, but apparently not.

[Girgias]

@Girgias Somehow I thought you already did this, but apparently not.

From my understanding they might not be actually defined, as they are optional types: https://en.cppreference.com/w/c/types/integer

That's why I didn't do it

[nikic]

@Girgias Right, they are optional if the target does not support the type. However, in this case it's also not possible to define an equivalent type (if it were possible, it would have been defined) and PHP cannot build on such a target.

[Girgias]

@Girgias Right, they are optional if the target does not support the type. However, in this case it's also not possible to define an equivalent type (if it were possible, it would have been defined) and PHP cannot build on such a target.

Okay then :D My understanding of the C standard is pretty limited at times, I thought that maybe some weird architecture target which had a 36bit word could compile PHP even if it doesn't have an exact 32bit integer, hence wouldn't declare int32_t.

But I might just be confused, so if all is good should be OK to merge :)