Remove ExternalSession, fallback login with Element Web is gone.

libraries/matrix/api/src/main/kotlin/io/element/android/libraries/matrix/api/auth/MatrixAuthenticationService.kt

@@ -10,7 +10,6 @@ package io.element.android.libraries.matrix.api.auth
 
 import io.element.android.libraries.matrix.api.MatrixClient
 import io.element.android.libraries.matrix.api.MatrixClientProvider
-import io.element.android.libraries.matrix.api.auth.external.ExternalSession
 import io.element.android.libraries.matrix.api.auth.qrlogin.MatrixQrCodeLoginData
 import io.element.android.libraries.matrix.api.auth.qrlogin.QrCodeLoginStep
 import io.element.android.libraries.matrix.api.core.SessionId
@@ -47,13 +46,6 @@ interface MatrixAuthenticationService {
      */
     suspend fun login(username: String, password: String): Result<SessionId>
 
-    /**
-     * Import a session that was created using another client, for instance Element Web.
-     *
-     * @param externalSession the tokens and identifiers of the session to import.
-     */
-    suspend fun importCreatedSession(externalSession: ExternalSession): Result<SessionId>
-
     /*
      * OAuth part.
      */

libraries/matrix/api/src/main/kotlin/io/element/android/libraries/matrix/api/auth/external/ExternalSession.kt

@@ -1,20 +0,0 @@
-/*
- * Copyright (c) 2025 Element Creations Ltd.
- * Copyright 2024, 2025 New Vector Ltd.
- *
- * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
- * Please see LICENSE files in the repository root for full details.
- */
-
-package io.element.android.libraries.matrix.api.auth.external
-
-/***
- * Represents a session data of a session created by another client.
- */
-data class ExternalSession(
-    val userId: String,
-    val deviceId: String,
-    val accessToken: String,
-    val refreshToken: String?,
-    val homeserverUrl: String,
-)