There are a few different ways that you can remove one color from an image in Photoshop. One way is to use the Selective Color tool. With this tool, you can Target a specific color range and then adjust the hue, saturation, and lightness levels until the color is removed. Another way to remove one color from an image is to use the Hue/Saturation tool.
With this tool, you can Target a specific color and then adjust the hue, saturation, and lightness levels until the color is removed. Finally, you can also use the Color Balance tool to remove one color from an image. With this tool, you can Target a specific color and then adjust the cyan, magenta, and yellow levels until the color is removed.
So, there you have it! Three different ways that you can remove one color from an image in Photoshop. Experiment with each of these methods to see which one works best for your particular image.