I have problems with jqPlot design. I currently have this:

It took quite a while to make it as it is, but now I have one problem - the line on the left! I do not know how to remove it, because I do not know what it is!
This is the code that I still have.
plot = $.jqplot('chart', [values], { animate: !$.jqplot.use_excanvas, seriesDefaults: { renderer: $.jqplot.BarRenderer, rendererOptions: { varyBarColor: true, }, pointLabels: { show: true, }, shadow: false, }, axes: { xaxis: { renderer: $.jqplot.CategoryAxisRenderer, ticks: keys, tickOptions: { showGridline: false, showMark: false, fontFamily: 'DosisBold', textColor: '#ffffff', fontSize: 'larger' }, }, yaxis: { tickOptions: { showGridline: false, showMark: false, showLabel: false, shadow: false, }, }, }, seriesColors: ["#bc4427", "#df8321", "#949629", "#5e8c41", "#739c9b", "#3483b3"], grid: { background: '#1d1d1d', drawGridLines: false, borderWidth: 0.0, shadow: false, }, highlighter: { show: false } });
I have a feeling that this could be due to the renderer used on the y axis. Currently, it just uses the default value (which I assume LinearAxisRenderer). If I change it to CategoryAxisRenderer, it will get rid of the annoying string, but then it will show the labels and incorrectly make the numbers on top of the bars (so it probably won't be that useful).
I also broke through CSS looking for the line color, # 757575, but to no avail. I also changed EVERY SINGLE COLOR in this file to what is highlighted (i.e. Red), but nothing changes anyway.
I'm not sure if this is a shadow on something, but I tried almost everything (except the correct path) to remove them; nothing yet.
Has anyone had this problem before? Any ideas?