[9.x] Remove parameter from DecoratesQueryBuilder::delete()

[staudenmeir]

#37956 added the DecoratesQueryBuilder trait to improve type hinting. delete() is a special case as its method signature in Eloquent\Builder is different from Query\Builder. Only the base query builder has an $id parameter, the Eloquent one doesn't:

framework/src/Illuminate/Database/Eloquent/Builder.php

Line 1031 in 05bba7c

public function delete()

framework/src/Illuminate/Database/Query/Builder.php

Line 2700 in 05bba7c

public function delete($id = null)

The trait is used in relationship classes and so the IDE suggests that $user->posts()->delete(1) works, but the parameter is actually ignored because Eloquent\Builder::delete() doesn't pass it on to Query\Builder::delete().