storage: remove getProviderStatus

src/backups.js

@@ -380,7 +380,7 @@ async function getMountStatus() {
     } else if (backupConfig.provider === 'filesystem') {
         hostPath = backupConfig.backupFolder;
     } else {
-        throw new BoxError(BoxError.BAD_STATE, 'Backup location is not a mount');
+        return { state: 'active' };
     }
 
     return await mounts.getStatus(backupConfig.provider, hostPath); // { state, message }