How do I remove the measure labels from my bar chart so it doesn't show in the legend?

I have a horizontal bar chart and have noticed that the "measure labels" is in the Vary Color By section of my chart. I can move it to Group By, Sections, and Graph Prompts but I don't want it in those sections either. It won't let me exclude it. I only want the product name to show in the legend. I don't remember this bring an issue before. Any suggestions? Thanks.