blender how to remove uv map from your mesh

So today i face this problem, there is some unwanted uv map attach on my mesh

below is how you can quickly remove them

1. On bottom left, switch your view to "UV/IMAGE EDITOR"

2. in the bottom middle , click the "BROWSE IMAGE TO BE LINK" button, you can see there is some uv map image laying around you wanna remove them

3. select one of the image, you can see there is "X" appear on the image right hand side, SHIFT CLICK the "X" then the uv image is gone,

4. save your project and reopen the uv image is gone for good