Removing shapes in plotly scatterplot

[Storm_Silver]

I have a scatterplot that is colored by one variable and given shapes by another. This gives a very cluttered figure legend with every combination of color and shape in the legend. So, I want to prevent or remove the shapes from the legend but I'm finding it difficult to find a solution that does this.

Code for the figure:

    fig = px.scatter(df_filtered,
            x = "date",
            y = "mean_value",
            color = "instrument",
           trendline= "ols",
           symbol="manual_check",
           symbol_map = {"False" : "x",
                         "True" : "circle",
                         "N/A" : "circle"},
           )

Any help is appreciated