How to hide q menu

In "garrysmod\gamemodes\darkrp\gamemode\cl_init.lua"

local function DisallowSpawnMenu( )
if not LocalPlayer():IsAdmin() then
return false
chat.AddText( Color( 255, 0, 0 ), "Menu reserv au staff du serveur !" )
end
end
hook.Add( "SpawnMenuOpen", "DisallowSpawnMenu", DisallowSpawnMenu)