Remove unused local.
Remove unused local.

zsxwing/RxJava,weikipeng/RxJava,davidmoten/RxJava,tilal6991/RxJava,nurkiewicz/RxJava,nurkiewicz/RxJava,zsxwing/RxJava,tilal6991/RxJava,davidmoten/RxJava,jacek-rzrz/RxJava,weikipeng/RxJava,jacek-rzrz/RxJava,hzysoft/RxJava,tilal6991/RxJava,jacek-rzrz/RxJava,hzysoft/RxJava,davidmoten/RxJava,weikipeng/RxJava,nurkiewicz/RxJava,hzysoft/RxJava,zsxwing/RxJava