Don't kill apps when only clearing caches.

        mHandler.post(new Runnable() {

            public void run() {

                try (PackageFreezer freezer = freezePackage(packageName,

                        "deleteApplicationCacheFiles")) {

                synchronized (mInstallLock) {

                    final int flags = StorageManager.FLAG_STORAGE_DE

                            | StorageManager.FLAG_STORAGE_CE;

                    // We're only clearing cache files, so we don't care if the

                    // app is unfrozen and still able to run

                    clearAppDataLIF(pkg, userId, flags | Installer.FLAG_CLEAR_CACHE_ONLY);

                    clearAppDataLIF(pkg, userId, flags | Installer.FLAG_CLEAR_CODE_CACHE_ONLY);

                }

                clearExternalStorageDataSync(packageName, userId, false);

                }

                if (observer != null) {

                    try {

                        observer.onRemoveCompleted(packageName, true);