[TypeDeclaration] Remove only void type on ReturnedNodesReturnTypeInfererTypeInferer

[samsonasik]

The service verify Return_ statement expr, which utilize collection of local return nodes via:

$localReturnNodes = $this->betterNodeFinder->findReturnsScoped($functionLike);

which if it found a Yield_, it stopped and returns [] array, which it is not a void type.

On the other hand, for Void addition usage, the Yield_ already checked on SilentVoidResolver which verify if it always a Void return as no Return_ nor Yield on AddVoidReturnTypeWhereNoReturnRector rule.

This ensure consistency of usage and verify VoidType only return.

[samsonasik]

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