docs: remove unnecessary Fixed section from changelog

- Removed verification items that aren't actual fixes
- Keep changelog focused on substantive changes

Author: inmve

CHANGELOG.md

@@ -17,10 +17,6 @@ All notable changes to the Coding with AI techniques collection are documented h
 - Enhanced tool implementations with detailed commands and workflows
 - Updated active development dates across all language versions
 
-### Fixed  
-- Verified no duplicate content across all technique additions
-- Maintained consistent documentation structure across all languages
-
 ## September 16, 2025 - v0.1
 
 ### Added