return remoteCalls.remove(callId);
}
@PrivateApi
void registerBackupCall(long callId, BackupCompletionCallback backupCompletionCallback) {
final BackupCompletionCallback current = backupCalls.put(callId, backupCompletionCallback);
if (current != null) {
logger.warning("Already registered a backup record for call[" + callId + "]!");
}
}