how to disable/remove this dropdown?

Hi!

I'm trying to disable this dropdown from my Related List -Single in my Opportunity record page, but I can't find any solutions for that. Have any idea that how i cuold do it? I don't know if is possible to coustom that page in VSCode. 

I let in order the layout releted list and what i need to disable/remove in my Opportunity page

Thanks in advance

#CRM Configuration