[calls] manager: Remove unused has_active_call() function

[Evangelos Ribeiro Tzaras <devrtz src gnome org>]

commit 55be6cd39edfeaa88c6cebf58c9fcaeaf1080ac5
Author: Evangelos Ribeiro Tzaras <devrtz fortysixandtwo eu>
Date:   Wed Aug 10 15:54:52 2022 +0200

    manager: Remove unused has_active_call() function
    
    Introduced in f69c597387cf5eee3c60e0b5947ce511298f0254
    but was never really used, so let's drop the dead code.

 src/calls-manager.c | 28 ----------------------------
 src/calls-manager.h |  1 -
 2 files changed, 29 deletions(-)
---
diff --git a/src/calls-manager.c b/src/calls-manager.c
index 655bb4db..714996ec 100644
--- a/src/calls-manager.c
+++ b/src/calls-manager.c
@@ -959,34 +959,6 @@ calls_manager_hang_up_all_calls (CallsManager *self)
   g_debug ("Hung up on all calls");
 }
 
-/**
- * calls_manager_has_active_call
- * @self: a #CallsManager
- *
- * Checks if @self has any active call
- *
- * Returns: %TRUE if there are active calls, %FALSE otherwise
- */
-gboolean
-calls_manager_has_active_call (CallsManager *self)
-{
-  g_autoptr (GList) calls = NULL;
-  GList *node;
-  CallsCall *call;
-
-  g_return_val_if_fail (CALLS_IS_MANAGER (self), FALSE);
-
-  calls = calls_manager_get_calls (self);
-
-  for (node = calls; node; node = node->next) {
-    call = node->data;
-    if (calls_call_get_state (call) != CALLS_CALL_STATE_DISCONNECTED)
-      return TRUE;
-  }
-
-  return FALSE;
-}
-
 /**
  * calls_manager_get_suitable_origins:
  * @self: The #CallsManager
diff --git a/src/calls-manager.h b/src/calls-manager.h
index 9ea6eb28..b42e970b 100644
--- a/src/calls-manager.h
+++ b/src/calls-manager.h
@@ -66,7 +66,6 @@ GListModel            *calls_manager_get_suitable_origins     (CallsManager *sel
                                                                const char   *target);
 CallsOrigin           *calls_manager_get_origin_by_id         (CallsManager *self,
                                                                const char   *origin_id);
-gboolean               calls_manager_has_active_call          (CallsManager *self);
 void                   calls_manager_hang_up_all_calls        (CallsManager *self);
 gboolean               calls_manager_has_any_provider         (CallsManager *self);
 const char           **calls_manager_get_provider_names       (CallsManager *self,