How can I disconnect this function in a server script?

I swear I was able to disconnect functions before but I seem to have forgotten. I have it so that when the player holds G, it fires a remote event which then activates the function, and when they release G it fires another remote event which is supposed to disconnect the function. I'm having a little trouble with that part. At first I tried this:

function bandaging(plr)
    local humanoid = plr.Character:WaitForChild("Humanoid")
    local wounds = humanoid.Wounds
    while wait() do
        if humanoid.Health > 0 then
            if wounds.Value > 0 then
                wounds.Value = wounds.Value - 1
            else
                return
            end
        else
            return
        end
    end
end

Bandaging.OnServerEvent:Connect(bandaging)

CancelBandaging.OnServerEvent:Disconnect(bandaging)

And then I got an error on the last line saying I couldn't use Disconnect I think. So then I tried changing it to lowercase and then got an error saying it was deprecated. My final attempt was this:

function bandaging(plr)
    local humanoid = plr.Character:WaitForChild("Humanoid")
    local wounds = humanoid.Wounds
    while wait() do
        if humanoid.Health > 0 then
            if wounds.Value > 0 then
                wounds.Value = wounds.Value - 1
            else
                return
            end
        else
            return
        end
    end
end

function cancelBandaging()
    bandaging:Disconnect()
end

Bandaging.OnServerEvent:Connect(bandaging)

CancelBandaging.OnServerEvent:Connect(cancelBandaging)

And that also didn't work. It said I was trying to index function with Disconnect. Any help is appreciated.