restore: teardown pseudo backup site

src/provision.js

@@ -163,7 +163,7 @@ async function activate(username, password, email, displayName, ip, auditSource)
 
     await eventlog.add(eventlog.ACTION_ACTIVATE, auditSource, {});
 
-    setImmediate(() => safe(platform.onActivated({ skipDnsSetup: false }), { debug }));
+    safe(platform.onActivated({ skipDnsSetup: false }), { debug }); // background
 
     return {
         userId: ownerId,
@@ -220,7 +220,9 @@ async function restoreTask(backupSite, remotePath, ipv4Config, ipv6Config, optio
 
         await appstore.checkSubscription(); // never throws. worst case, user has to visit the Account view to refresh subscription info
 
-        setImmediate(() => safe(platform.onActivated({ backupSite, skipDnsSetup: options.skipDnsSetup }), { debug }));
+        safe(platform.onActivated({ skipDnsSetup: options.skipDnsSetup }), { debug }); // background
+
+        await backupSites.storageApi(backupSite).teardown(backupSite.config);
     } catch (error) {
         debug('restoreTask: error. %o', error);
         gStatus.restore.errorMessage = error ? error.message : '';