Add three tokens in GIDGoogleUser API

GoogleSignIn/Sources/GIDGoogleUser.m

@@ -173,14 +173,6 @@ NS_ASSUME_NONNULL_BEGIN
   return nil;
 }
 
-- (nullable NSString *)serverClientID {
-  return [_authState.lastTokenResponse.request.additionalParameters[kAudienceParameter] copy];
-}
-
-- (nullable NSString *)openIDRealm {
-  return [_authState.lastTokenResponse.request.additionalParameters[kOpenIDRealmParameter] copy];
-}
-
 #pragma mark - NSSecureCoding
 
 + (BOOL)supportsSecureCoding {

GoogleSignIn/Sources/GIDToken.m

@@ -84,6 +84,7 @@ NS_ASSUME_NONNULL_BEGIN
   if (!date1 && !date2) {
     return YES;
   }
+  
   return [date1 isEqualToDate:date2];
 }
 

GoogleSignIn/Tests/Unit/GIDSignInTest.m

@@ -415,7 +415,6 @@ static void *kTestObserverContext = &kTestObserverContext;
   OCMStub([_tokenRequest additionalParameters]).andReturn(nil);
   OCMStub([_tokenResponse accessToken]).andReturn(kAccessToken);
   OCMStub([_tokenResponse accessTokenExpirationDate]).andReturn(nil);
-  
 
   [_signIn restorePreviousSignInNoRefresh];