appengine: Check only if app installed and running

Check only if app is installed and running at the "is app running" check
at the beginning of each update cycle. Whether app blobs are present&OK
or not does NOT impact a properly installed and running app.
Moreover, after "is app running" check, the aklite daemon checks whether
all enabled apps (including the "reset" apps") are fully fetched. We
need this check to make sure a user can switch (turn on/off) apps even
if offline mdoe.
Therefore, this change removes the redundant check whether all app blobs
are fetched&OK called at the "is app running" check.

Signed-off-by: Mike Sul <[email protected]>

src/docker/restorableappengine.cc

@@ -242,8 +242,7 @@ bool RestorableAppEngine::isRunning(const App& app) const {
   bool res{false};
 
   try {
-    res = isAppFetched(app) && isAppInstalled(app) &&
-          isRunning(app, (install_root_ / app.name / ComposeFile).string(), docker_client_);
+    res = isAppInstalled(app) && isRunning(app, (install_root_ / app.name / ComposeFile).string(), docker_client_);
   } catch (const std::exception& exc) {
     LOG_WARNING << "App: " << app.name << ", cannot check whether App is running: " << exc.what();
   }