How can I disable the chat records box?

How would I disable the ability for a player to look at the square above the "to chat click here" box? This is for a game where players seeing this menu would take away from the place's atmosphere. Thank you.

You can hide the game's chat in place config,but if you want completely to disable it make this a server script in startergui:

local StarterGui = game:GetService('StarterGui')

StarterGui:SetCoreGuiEnabled(Enum.CoreGuiType.Chat, false)