category and tag

i remove featured image from my website this is my website link

http://pomm.tk/

its look fine without featured image but if i click on tag or category then problem start its show featured image any way to remove it from category and tag?

http://pomm.tk/category/funny/

look this link you will see my prob 🙁 anyone can help?

this is how i remove featured image

https://wordpress.org/support/topic/remove-featured-image-from-homepage-and-post?replies=4