diff --git a/app/src/main/java/eu/kanade/tachiyomi/source/SourceManager.kt b/app/src/main/java/eu/kanade/tachiyomi/source/SourceManager.kt
index e471ccfcaa..2f3dbbe3cf 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/source/SourceManager.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/source/SourceManager.kt
@@ -104,6 +104,7 @@ class SourceManager(private val context: Context) {
         }
         return StubSource(SourceData(id, "", ""))
     }
+
     @Suppress("OverridingDeprecatedMember")
     open inner class StubSource(val sourceData: SourceData) : Source {
 
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/base/presenter/BasePresenter.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/base/presenter/BasePresenter.kt
index 3a68f6479b..d55d169cce 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/presenter/BasePresenter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/presenter/BasePresenter.kt
@@ -7,7 +7,6 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.MainScope
 import kotlinx.coroutines.cancel
 import nucleus.presenter.RxPresenter
-import nucleus.presenter.delivery.Delivery
 import rx.Observable
 
 open class BasePresenter<V> : RxPresenter<V>() {
@@ -67,28 +66,4 @@ open class BasePresenter<V> : RxPresenter<V>() {
      * @param onError function to execute when the observable throws an error.
      */
     fun <T> Observable<T>.subscribeReplay(onNext: (V, T) -> Unit, onError: ((V, Throwable) -> Unit) = { _, _ -> }) = compose(deliverReplay<T>()).subscribe(split(onNext, onError)).apply { add(this) }
-
-    /**
-     * Subscribes an observable with [DeliverWithView] and adds it to the presenter's lifecycle
-     * subscription list.
-     *
-     * @param onNext function to execute when the observable emits an item.
-     * @param onError function to execute when the observable throws an error.
-     */
-    fun <T> Observable<T>.subscribeWithView(onNext: (V, T) -> Unit, onError: ((V, Throwable) -> Unit) = { _, _ -> }) = compose(DeliverWithView<V, T>(view())).subscribe(split(onNext, onError)).apply { add(this) }
-
-    /**
-     * A deliverable that only emits to the view if attached, otherwise the event is ignored.
-     */
-    class DeliverWithView<View, T>(private val view: Observable<View>) : Observable.Transformer<T, Delivery<View, T>> {
-
-        override fun call(observable: Observable<T>): Observable<Delivery<View, T>> {
-            return observable
-                .materialize()
-                .filter { notification -> !notification.isOnCompleted }
-                .flatMap { notification ->
-                    view.take(1).filter { it != null }.map { Delivery(it, notification) }
-                }
-        }
-    }
 }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt
index 0fa44486fb..18c50a6f85 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt
@@ -368,7 +368,7 @@ class MainActivity : BaseActivity() {
             try {
                 ExtensionGithubApi().checkForUpdates(
                     this@MainActivity,
-                    fromAvailableExtensionList = true
+                    fromAvailableExtensionList = true,
                 )?.let { pendingUpdates ->
                     preferences.extensionUpdatesCount().set(pendingUpdates.size)
                 }