Remove RenderSuccess, RenderWarning, RenderError, and RenderInfo functions that were never used. The codebase uses style.SuccessPrefix and style.Success.Render() directly instead. Closes gt-nz6t. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>