[9] Review request for 8163576: StackedBarChart.getSeriesSize is unneeded

[Vadim Pakhnushev]

Hi Jonathan,

Could you please review the fix:
https://bugs.openjdk.java.net/browse/JDK-8163576
http://cr.openjdk.java.net/~vadim/8163576/webrev.00/

Thanks,
Vadim