remove deprecated model(solar-pro)

[eora21]

Description

remove deprecated(solar-pro) model

• in CHAT_MODELS
• in FUNCTION_CALLING_MODELS
• in DOC_PARSING_MODELS
• in SOLAR_TOKENIZERS

New Package?

Did I fill in the tool.llamahub section in the pyproject.toml and provide a detailed README.md for my new integration or package?

• Yes
• No

Version Bump?

Did I bump the version in the pyproject.toml file of the package I am updating? (Except for the llama-index-core package)

• Yes
• No

Suggested Checklist:

• My changes generate no new warnings
• New and existing unit tests pass locally with my changes
• I ran uv run make format; uv run make lint to appease the lint gods