Move isElementCallAvailable fun to new SessionEnterpriseService, which implementations can get the current MatrixClient.

features/enterprise/api/src/main/kotlin/io/element/android/features/enterprise/api/EnterpriseService.kt

@@ -16,8 +16,6 @@ interface EnterpriseService {
     fun defaultHomeserverList(): List<String>
     suspend fun isAllowedToConnectToHomeserver(homeserverUrl: String): Boolean
 
-    suspend fun isElementCallAvailable(): Boolean
-
     fun semanticColorsLight(): SemanticColors
     fun semanticColorsDark(): SemanticColors
 

features/enterprise/api/src/main/kotlin/io/element/android/features/enterprise/api/SessionEnterpriseService.kt

@@ -0,0 +1,12 @@
+/*
+ * Copyright 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.features.enterprise.api
+
+interface SessionEnterpriseService {
+    suspend fun isElementCallAvailable(): Boolean
+}