[DeadCode] Skip fluent no return type on RemoveUnusedPrivateMethodRector take 2

[samsonasik]

Ref #6108 (comment)

• skip called on last
• allow remove if never called on fluent

[samsonasik]

Fixed 🎉

[samsonasik]

All checks have passed 🎉 @TomasVotruba I am merging it ;)

[OA]

Hey @samsonasik thanks for fixing this! Any ETA when this will be released? 😄

[samsonasik]

You can use "rector/rector": "dev-main" for now ;)

[TomasVotruba]

@OA We usually do release once 2-3 weeks, once few more fixes pile up :)