Use an https callback for OIDC once again. (#3461)

* Use the new WAS callback type and return back to the https callback for OIDC.

* Simplify OIDCAuthenticationPresenter now it doesn't need to handle universal links.

* Remove old unit tests.

ElementX/Sources/Screens/Authentication/SoftLogoutScreen/SoftLogoutScreenCoordinator.swift

@@ -85,15 +85,6 @@ final class SoftLogoutScreenCoordinator: CoordinatorProtocol {
         AnyView(SoftLogoutScreen(context: viewModel.context))
     }
     
-    func handleOIDCRedirectURL(_ url: URL) {
-        guard let oidcPresenter else {
-            MXLog.error("Failed to find an OIDC request in progress.")
-            return
-        }
-        
-        oidcPresenter.handleUniversalLinkCallback(url)
-    }
-    
     // MARK: - Private
     
     private static let loadingIndicatorIdentifier = "\(SoftLogoutScreenCoordinator.self)-Loading"