Bug 1820559 - Remove PlacesStorage maintenance feature flag for enabling the feature to all users.

This feature registers a periodic storage maintenance worker that runs to prune and maintain places db.

app/src/main/java/org/mozilla/fenix/FeatureFlags.kt

@@ -71,11 +71,4 @@ object FeatureFlags {
      * Enables the notification pre permission prompt.
      */
     const val notificationPrePermissionPromptEnabled = true
-
-    /**
-     * Enables storage maintenance feature.
-     *
-     * Feature flag tracking: https://github.com/mozilla-mobile/fenix/issues/27759
-     * */
-    val storageMaintenanceFeature = Config.channel.isNightlyOrDebug || Config.channel.isBeta
 }

app/src/main/java/org/mozilla/fenix/FenixApplication.kt

@@ -225,14 +225,14 @@ open class FenixApplication : LocaleAwareApplication(), Provider {
             warmBrowsersCache()
 
             initializeWebExtensionSupport()
-            if (FeatureFlags.storageMaintenanceFeature) {
-                // Make sure to call this function before registering a storage worker
-                // (e.g. components.core.historyStorage.registerStorageMaintenanceWorker())
-                // as the storage maintenance worker needs a places storage globally when
-                // it is needed while the app is not running and WorkManager wakes up the app
-                // for the periodic task.
-                GlobalPlacesDependencyProvider.initialize(components.core.historyStorage)
-            }
+
+            // Make sure to call this function before registering a storage worker
+            // (e.g. components.core.historyStorage.registerStorageMaintenanceWorker())
+            // as the storage maintenance worker needs a places storage globally when
+            // it is needed while the app is not running and WorkManager wakes up the app
+            // for the periodic task.
+            GlobalPlacesDependencyProvider.initialize(components.core.historyStorage)
+
             restoreBrowserState()
             restoreDownloads()
             restoreMessaging()
@@ -366,14 +366,12 @@ open class FenixApplication : LocaleAwareApplication(), Provider {
         }
 
         fun queueStorageMaintenance() {
-            if (FeatureFlags.storageMaintenanceFeature) {
-                queue.runIfReadyOrQueue {
-                    // Make sure GlobalPlacesDependencyProvider.initialize(components.core.historyStorage)
-                    // is called before this call. When app is not running and WorkManager wakes up
-                    // the app for the periodic task, it will require a globally provided places storage
-                    // to run the maintenance on.
-                    components.core.historyStorage.registerStorageMaintenanceWorker()
-                }
+            queue.runIfReadyOrQueue {
+                // Make sure GlobalPlacesDependencyProvider.initialize(components.core.historyStorage)
+                // is called before this call. When app is not running and WorkManager wakes up
+                // the app for the periodic task, it will require a globally provided places storage
+                // to run the maintenance on.
+                components.core.historyStorage.registerStorageMaintenanceWorker()
             }
         }