oyondo

I had the same issue, and able to remove it.
Click on Payment
You’ll see the woo payments information with the offer/button to install woopayments for free. Beside that button you’ll see a Link “No, thanks” Click on it > and click on the red button or fill out the questions.
Thats it and the Menu disappears.

This will also happen when you edit ohter plugins CSS especially when using WPRocket. There are some tweaks in WPRocket you have to look deeper. Minify CSS etc.
But also not the best idea to change these values in the plugin itself, because on update your values are overwritten.
Use your theme / child theme CSS to overwrite the values and this will work.

One more note on the rating, giving only one star when you are not able to fix the cause of your caching plugin is very unfair.