[calls] sip: provider: No need to print warning when no credentials file found

[Evangelos Ribeiro Tzaras <devrtz src gnome org>]

commit 4e76efc5e7b31eca1e50564ab6d3c7142d621c07
Author: Evangelos Ribeiro Tzaras <devrtz fortysixandtwo eu>
Date:   Wed Aug 25 19:48:23 2021 +0200

    sip: provider: No need to print warning when no credentials file found
    
    The file could simply not (yet) exist.

 plugins/sip/calls-sip-provider.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/plugins/sip/calls-sip-provider.c b/plugins/sip/calls-sip-provider.c
index 713cf530..beb470f9 100644
--- a/plugins/sip/calls-sip-provider.c
+++ b/plugins/sip/calls-sip-provider.c
@@ -473,7 +473,7 @@ calls_sip_provider_constructed (GObject *object)
       g_autoptr (GKeyFile) key_file = g_key_file_new ();
 
       if (!g_key_file_load_from_file (key_file, self->filename, G_KEY_FILE_NONE, &error)) {
-        g_warning ("Error loading key file: %s", error->message);
+        g_debug ("Error loading key file: %s", error->message);
         goto out;
       }
       calls_sip_provider_load_accounts (self, key_file);