Hi,
Thanks for contacting us,
There is 3 different header style for shop and categories page such as these :
1. http://kitestudio.co/pinkmart/shop/?header_display=cat_icon
2. http://kitestudio.co/pinkmart/shop/?header_display=cat_sub
3. http://kitestudio.co/pinkmart/shop/?header_display=cat_image
For more information, please read the following article:
If you want to remove the header on shop page, you can simply remove it on the following path :
Dashboard > Customized > WooCommerce > Product Catalog > Shop page display > Show products
Best Regards.