Hello,
Shop page can’t be edited using Elementor. If you want to edit those banners you need to go to Elementor settings and enable Elementor for the Static Blocks https://xstore.helpscoutdocs.com/article/47-static-blocks
After that go to Static blocks > edit appropriate static block according to your needs.
If you want just remove the block then go to Theme Options > WooCommerce > Shop > Product page layout > remove static block shortcode from the Product page banner content area.
Regards