Do not delete if DB information is not available (and db is)

Script/DeleteThread.py

@@ -245,6 +245,8 @@ class DeleteThread(threading.Thread):
                         if filehealth and not filehealth == 'TRUNCATED':
                             success &= (castorfilesize == dbfilesize)
                             success &= (dbchecksum.lower() == checksum.lower())
+                        elif not filehealth:
+                            success = False
                                                                
                 if success:
                     self.delete(deletefile)