deprecation of delayed and static scaling from torchao.float8

[vkuzo]

Summary

We plan to deprecate delayed and static scaling from torchao.float8 training codebase due to lack of real world use cases for delayed/static scaling (dynamic scaling is required for higher accuracy).

Deprecation timeline

• v0.9.0: display deprecation warning
• v0.10.0: deprecate

Alternatives

Use dynamic scaling

[vkuzo]

this is done