Update 0.6.0-MIGRATION-GUIDE.md

remove unrelated sections

Author: tzolov

mcp-docs/0.6.0-MIGRATION-GUIDE.md

@@ -237,22 +237,3 @@ The following APIs are deprecated and will be removed in a future release:
 - `McpServer.ResourceRegistration` - Use `McpServerFeatures.SyncResourceRegistration` or `McpServerFeatures.AsyncResourceRegistration` instead
 - `McpServer.PromptRegistration` - Use `McpServerFeatures.SyncPromptRegistration` or `McpServerFeatures.AsyncPromptRegistration` instead
 - `ToolHelper.toToolRegistration()` - Use `ToolHelper.toSyncToolRegistration()` instead
-
-## Benefits of Migration
-
-1. **Improved Type Safety**: The new builder patterns and feature classes provide better compile-time type checking.
-
-2. **Clear Async/Sync Separation**: Distinct builders and features for sync and async operations make the code intent clearer.
-
-3. **Enhanced Reactive Support**: Async operations now properly integrate with Project Reactor's `Mono` type.
-
-4. **Better Error Handling**: More consistent error handling across sync and async operations.
-
-5. **Simplified Configuration**: Builder patterns provide a more intuitive way to configure clients and servers.
-
-## Additional Notes
-
-- The migration primarily focuses on builder patterns and feature organization
-- Functional behavior remains the same after migration
-- Async operations now properly integrate with Project Reactor
-- All deprecated APIs will continue to work but will be removed in a future release