Removed unnecessary change from the changed list

Author: bohdan-harniuk

CHANGELOG.md

@@ -23,7 +23,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0).
 
 - Changed the content of the generated plugin class in [#612](https://github.com/magento/magento2-phpstorm-plugin/pull/612)
 - Changed using of hardcoded entity id value into the constant in all files generated by the Entity Creator in [#606](https://github.com/magento/magento2-phpstorm-plugin/pull/606)
-- Changed dialog fields validation logic for validation only visible fields on the dialog in [#573](https://github.com/magento/magento2-phpstorm-plugin/pull/573)
 
 ### Fixed