RFR: 8283675: Line not removed from LineChart when series cleared

[Andy Goryachev]

On Fri, 18 Aug 2023 07:25:28 GMT, Karthik P K <kpk at openjdk.org> wrote:

> The issue is present in AreaChart along with the LineChart. Issue is fixed in both the charts as part of this PR.
> The line elements in case of Line chart and both line element and fill element in the case of Area charts were not cleared in `makePaths()` method in AreaChart.java. Hence the line and fill area were not getting cleared when series was cleared.
> 
> Made changes in code to clear line element and fill element as required in the `makePaths()` method.
> 
> Added tests to validate the changes in both LineChart and AreaChart.

This looks good, with 2 more tickets out of scope for this PR.
Could we have another reviewer to take a look please?

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Marked as reviewed by angorya (Reviewer).

PR Review: https://git.openjdk.org/jfx/pull/1214#pullrequestreview-1589678151