gtk.cfg: Remove transfer none function g_application_get_default

See https://docs.gtk.org/gio/type_func.Application.get_default.html

Author: Tamaranch

cfg/gtk.cfg

@@ -807,7 +807,6 @@
     <alloc init="true" no-fail="true">g_app_info_get_default_for_uri_scheme</alloc>
     <alloc init="true" no-fail="true">g_application_new</alloc>
     <alloc init="true" no-fail="true">g_application_get_dbus_connection</alloc>
-    <alloc init="true" no-fail="true">g_application_get_default</alloc>
     <alloc init="true" no-fail="true">g_buffered_input_stream_new</alloc>
     <alloc init="true" no-fail="true">g_buffered_output_stream_new</alloc>
     <alloc init="true" no-fail="true">g_cancellable_new</alloc>