Remove duplicate nullity check line (#5723)
Remove duplicate nullity check line (#5723)


ReactiveX/RxJava,NiteshKant/RxJava,NiteshKant/RxJava,reactivex/rxjava,artem-zinnatullin/RxJava,reactivex/rxjava,akarnokd/RxJava,artem-zinnatullin/RxJava,ReactiveX/RxJava,akarnokd/RxJava