Removing Squarespace's Shop Navigation

Hi there, 

I'm working on an e-commerce site and after getting a tad bit frustrated with the lack of edit-ability with Squarespace's native UI I finally have settled on a work-around that I'm happy with. However, I need help to try and pull it off; as I'm not super great with code.

Basically, I'm looking to remove Squarespace's e-commerce menu navigation in favour of just having hard-baked the navigation into the header. (see image)

Now I just need to hide / get rid of the store's navigation that's on the page.

Could anyone supply me with some code to do that?  

Thank you!

That did work! Thank you very much.