Fix dbus service

Author: joseivanlopez

service/lib/agama/dbus/storage/manager.rb

@@ -56,7 +56,6 @@ def initialize(backend, logger: nil)
           super(PATH, logger: logger)
           @backend = backend
 
-          register_storage_callbacks
           register_progress_callbacks
           register_iscsi_callbacks
 
@@ -527,10 +526,6 @@ def proposal
           backend.proposal
         end
 
-        def register_storage_callbacks
-          backend.on_issues_change { issues_properties_changed }
-        end
-
         def register_iscsi_callbacks
           backend.iscsi.on_probe do
             iscsi_initiator_properties_changed