Updates the token count doc with GPT-4o and removes the deprecated version GPT-4-0314.

[DaviReisVieira]

…crapted version gpt-4-0314

Summary

This PR updates the token count documentation to reflect changes with GPT-4o and removes the deprecated version GPT-4-0314.

Motivation

With the introduction of GPT-4o, it's essential to update our documentation to provide accurate token count information for users. Removing the deprecated version GPT-4-0314 ensures that users are directed to the most relevant and up-to-date resources.

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