Revert "Use contextvars for tracking the MCP sampling model"#2132

DouweM merged 1 commit intomainpydantic/pydantic-ai:mainfrom

revert-2117-dmontagu/fix-run-mcp-serverspydantic/pydantic-ai:revert-2117-dmontagu/fix-run-mcp-serversCopy head branch name to clipboard