Remove Page Banner with Tudor Template

I am attempting to keep the page thumbnail but remove automatic banner that appears when I do this: 

Thumbnail:

Page Banner that is added:

I have read a lot of different solutions but none have been working to remove the banner. If I remove the thumbnail it looks overly simply from my home page, so the thumbnail must stay. However, this massive image for a banner is no good and need to be removed. 

If anyone knows how to get ride of this it would be awesome! 

@mattg Add to Home > Design > Custom CSS

/* Remove Blog Top Image */
.collection-type-blog.view-item .blog-item-banner {
    display: none;
}
/* Fix header overlap post date */
.collection-type-blog.view-item .blog-wrapper {
    padding-top: 50px;
}