How do you remove attached images?

[ReesesRainbowHelixXOXO]

I noticed that images come up bigger if you put them on your post with the URL method but along with that comes a box called "Attached Images" with the same images attached to the post but smaller... How do I remove that?

 

[mogyay]

click 'go advanced' and at the bottom there should be an option to 'manage attachments' where you can delete from there

 

[ReesesRainbowHelixXOXO]

Thank you so much! It worked!