HighCharts Hide Series Name from the Legend
If you don't want to show the series names in the legend you can disable them by setting showInLegend:false.
example:
series: [{ showInLegend: false, name: "<b><?php echo $title; ?></b>", data: [<?php echo $yaxis; ?>],}]You get other options here.
Set showInLegend to false.
series: [{ showInLegend: false, name: 'Series', data: value }]
Looks like HighChart 2.2.0 has resolved this issue. I tried it here with the same code you have, and the first series is hidden now. Could you try it with HighChart 2.2.0?