How do you remove items from an item DataStore?

function SaveData(Player)
	local Items = {}
	for i,Item in ipairs(Player.Backpack:GetChildren()) do
		if game.ReplicatedStorage:FindFirstChild(Item.Name) ~= nil then
			if game.ReplicatedStorage[Item.Name]:IsA("Tool") then
				table.insert(Items, Item.Name)
			end
		end
	end
	PlayersItems:SetAsync(Player.UserId, Items)
end

This does not check for the items that are either dropped or consumed by the player. And I'm not sure how to remove items when the player gets rid of them.

Moderator note: Please format your Lua code with the lua block code button.