Remove fixme CVS-183878

[dkalinowski]

🛠 Summary

CVS-183878

[Copilot]

Pull request overview

Removes leftover FIXME comments in test model constants and the Mistral LLM tool parser, aligning the codebase with the referenced CVS-183878 cleanup.

Changes:

• Deleted an unused FIXME-commented-out shape constant in src/test/test_models.hpp.
• Deleted a FIXME note about duplicated logic in src/llm/io_processing/mistral/tool_parser.hpp.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/test/test_models.hpp	Removes an obsolete FIXME comment in test model shape constants.
src/llm/io_processing/mistral/tool_parser.hpp	Removes a FIXME duplication note above streaming parser state members.