Manually: select the series, and make the first field of the =SERIES formula be "".
Thanks, but that only gets rid of the legend text for the series and leaves the symbol/line in the legend (I want to remove the entire legend entry for the series).
Not possible as far as I know. I had the same problem and all I did was the suggestion above, and then I made the symbol the same as the background color, for instance if the legend or chart background color is white then make the symbol white, it is still there but does not show up.
I think it may be possible. Obtain the Legend property from the chart object, after witch get the LegendEntries property and get the legend entry that you want to delete. Call the Delete() method of that legend entry and it will be gone!
The legend property is supposed to be non-writable, but somehow it can be done.