Remove SpecsStaging repo from Podfiles after 9.0.0 iOS release.#923

jonsimantov merged 2 commits intoother/test_ios_900_podsfirebase/firebase-cpp-sdk:other/test_ios_900_podsfrom

other/test_ios_900_pods_remove_stagingfirebase/firebase-cpp-sdk:other/test_ios_900_pods_remove_stagingCopy head branch name to clipboard