[Xrystal]

Give this a go but make sure you make a copy to restore it if it doesn't work.

Folder: \Interface\AddOns\nUI\Layouts\Default\HUDLayouts\PlayerTarget
... PlayerTarget is the type of hud you are using so change to whatever folder is for the hud you want to change

File: nUI_HUDSkin_PlayerTarget_Target.lua

Code Block:

["ComboPoints"] =
        {
            anchor =
            {
                anchor_pt   = "BOTTOM",
                relative_to = nUI_HUDLAYOUT_PLAYERTARGET.."Bottom",
                relative_pt = "TOP",
                xOfs        = 0,
                yOfs        = 130,
            },      
            options =
            {
                enabled = true,
                size    = 30,
                strata  = nil,
                level   = nil,
                orient  = "CENTER",
            },
        },

Simply change enabled to false and reload the UI and see if that resolves it for you.

That may only affect the hud's version of the combo points though if it does appear anywhere else.