removes deprecation messages getIDTokenWithComp.. (#1011)
removes deprecation messages getIDTokenWithComp.. (#1011)

Removes deprecation message for getIDTokenWithCompletion: and getIDTokenForcingRefresh:completion.  This methods are not being deprecated.
firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk