This code, added in 703b2c2ed0 (2015),
is no longer necessary.
// Disconnect the tool factory listeners so the toolbar
// doesn't start showing new tools as they load, too
// much flickering
this.getToolbar().getToolFactory().off( 'register' );
Introduction of targetLoader (d371014e5d)
resulted in all tools already being loaded before a Target is
constructed, so this is definitely not needed.
// Disable all the tools
this.getToolbar().updateToolState();
The tools are already disabled because we set the surface to read-only
above, so this does nothing.
Change-Id: Idb162b60891cd1b961e29d2b9f62b74908f17957