Remove ReactiveMoya availability information from Moya/Availability.swift.
Remove ReactiveMoya availability information from Moya/Availability.swift.

AvdLee/Moya,Moya/Moya,Moya/Moya,Moya/Moya,justinmakaila/Moya,AvdLee/Moya,justinmakaila/Moya,calt/Moya,AvdLee/Moya,ashfurrow/Moya,calt/Moya,ashfurrow/Moya,justinmakaila/Moya,calt/Moya