Remove arrow from menu! Please help

Hi guys

Trying to remove this arrow from the dropdown menu as you see in these sreenshots below, I cannot find a specific class or id for the arrow so it doesn’t seem as easy as adding display:none; to the CSS.

1. https://prntscr.com/adift4

2. https://prntscr.com/adigeb

3. https://prntscr.com/adigns

As you can see in screenshots 2 and 3, if I delete the class name whilst inspecting the element then it works and functions perfectly how I would want it, I am just not sure how to add/remove that to/from my stylesheet or do whatever I need to do.

Here is the website so you can all view it.

https://www.southsidecreations.co.uk

Thanks in advance!

Oliver