itext example contains undocumented unsupported time series chart feature

The first chart generated by the JFreeChart feature of the itext example is empty, because the code references non-existent data

<p:timeserieschart dataset="#{chartseries.dataset}" ... />

while the chartseries component is not available in the example.

This should be fixed either by creating the component with the dataset for the time series chart, or simply by removing the time series chart from the example, since this feature is not even in the Seam PDF documentation.