Revert "Add new feature flag to enable background loader for downloads"

components/offline_pages/offline_page_feature.h

Index: components/offline_pages/offline_page_feature.h
diff --git a/components/offline_pages/offline_page_feature.h b/components/offline_pages/offline_page_feature.h
index 71db50616eface53ed1670c5130e979c95ad196e..fee2325e260ed863fd340a0db7ae652ef8fc1cc3 100644
--- a/components/offline_pages/offline_page_feature.h
+++ b/components/offline_pages/offline_page_feature.h
@@ -15,7 +15,6 @@ extern const base::Feature kOffliningRecentPagesFeature;
 extern const base::Feature kOfflinePagesBackgroundLoadingFeature;
 extern const base::Feature kOfflinePagesCTFeature;
 extern const base::Feature kOfflinePagesSharingFeature;
-extern const base::Feature kBackgroundLoaderForDownloadsFeature;
 
 // Returns true if offline pages, as result of one or more offline features
 // being enabled, is enabled.
@@ -36,8 +35,6 @@ bool IsOfflinePagesCTEnabled();
 // Returns true if offline page sharing is enabled.
 bool IsOfflinePagesSharingEnabled();
 
-bool IsBackgroundLoaderForDownloadsEnabled();
-
 }  // namespace offline_pages
 
 #endif  // COMPONENTS_OFFLINE_PAGES_OFFLINE_PAGE_FEATURE_H_>>>> Flag for Offline