Revert "Watch OS deployment target to meet RxSwift"
Revert "Watch OS deployment target to meet RxSwift"

This reverts commit 5bcdf321456f574d3c8510b486b9d85bf0c75387.

bontoJR/RxAlamofire,RxSwiftCommunity/RxAlamofire,bontoJR/RxAlamofire,RxSwiftCommunity/RxAlamofire,RxSwiftCommunity/RxAlamofire