Remove some overly generic valgrind suppressions
Remove some overly generic valgrind suppressions

They masked one ostree leak that reappeared on bionic, supposedly
because the suppression was not working there

advancedtelematic/sota_client_cpp,advancedtelematic/sota_client_cpp,advancedtelematic/aktualizr,advancedtelematic/aktualizr,advancedtelematic/aktualizr,advancedtelematic/aktualizr