simplify changeset

Author: JReinhold

.changeset/remove-xml-formatter.md

@@ -7,15 +7,5 @@ Remove XML formatter and simplify format pattern to use only markdown.
 
 **BREAKING CHANGE**: The `format` option has been removed from both `@storybook/mcp` and `@storybook/addon-mcp`. Previously, you could configure the output format as either `'xml'` or `'markdown'`. Now, all output is formatted as markdown by default.
 
-**Migration guide**:
-- If you were using `format: 'markdown'` (the default), no changes are needed.
-- If you were using `format: 'xml'`, this option no longer has any effect. All documentation is now formatted as markdown.
 - The `experimentalFormat` option in `@storybook/addon-mcp` addon options has been removed.
 - The `format` property in `StorybookContext` has been removed from `@storybook/mcp`.
-
-**What changed**:
-- Removed XML formatter implementation
-- Simplified formatter pattern to directly use markdown
-- Removed `OutputFormat` type union
-- Removed `format` parameter from all formatting functions
-- Updated CLI tools (`bin.ts`, `serve.ts`) to remove format arguments