Revert "Fix get_model_from_request() to extract model ID from Vertex AI passthrough URLs"#18063

Sameerlite merged 1 commit intolitellm_staging_12_16_2025BerriAI/litellm:litellm_staging_12_16_2025from

revert-17970-fix/auth-passthrough-enhancementsBerriAI/litellm:revert-17970-fix/auth-passthrough-enhancementsCopy head branch name to clipboard