Update 3.x.md

Author: andrey-helldar

docs/prologue/changelog/3.x.md

@@ -25,15 +25,3 @@
 See the [`upgrade manual`](https://actions.dragon-code.pro/prologue/upgrade.html) for more information.
 
 **Full Changelog**: https://github.com/TheDragonCode/laravel-migration-actions/compare/v2.9.0...v3.0.0
-
-## v3.0-RC8 - 2022-10-12
-
-**Full Changelog**: https://github.com/TheDragonCode/laravel-migration-actions/compare/v3.0-RC7...v3.0-RC8
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-## v3.0-RC6 - 2022-10-12
-
-**Full Changelog**: https://github.com/TheDragonCode/laravel-migration-actions/compare/v3.0-RC4...v3.0-RC6
-
-## v3.0-RC2 - 2022-10-12
-
-**Full Changelog**: https://github.com/TheDragonCode/laravel-migration-actions/compare/v3.0-RC1...v3.0-RC2