Remove X label on hovermode: 'x unified'

How to remove the x value (44.4612) at the top of the unified hover?

const layout = {
xaxis: { title: “Return μ (%)” },
showgrid: false,
overlaying: ‘x’,
side: ‘top’,
tickvals: reducedTickVals,
ticktext: reducedTickText,
hovertemplate: ’ ',
},
yaxis: { title: “Weight %”, range: [0, 1] },
hovermode: ‘x unified’,
hoverlabel: { },
};

Thanks :slight_smile: