This partially reverts 3726516c0ab381d3d29e24e412f73679e830aba2 due to
which the updateToolbar() method is no longer called by the default
refresh job.

Subclasses may override updateToolbar() without also overriding
doCreateRefreshJob() which in return means that their toolbar is not
updated anymore.

Because this method is called again, the deprecation tag introduced with
176f5030b1ed724274f88552b8bec14e43111832 is also removed