Remove accidentally swig generated field FirebaseUser.provider_data_DEPRECATED (#718)

Author: AlmostMatt

auth/src/swig/auth.i

@@ -1846,6 +1846,7 @@ static CppInstanceManager<Auth> g_auth_instances;
 %ignore firebase::auth::User::EmailVerified;
 %ignore firebase::auth::User::Anonymous;
 %ignore firebase::auth::User::RefreshToken;
+%ignore firebase::auth::User::provider_data_DEPRECATED;
 // NOTE: It's not necesaary to ignore the following methods
 // as they're replaced by the attributes below:
 // * firebase::auth::User::Email