Update undotree.lua

lua/lazyvim/plugins/extras/editor/undotree.lua

@@ -6,18 +6,6 @@ return {
       { "<leader>uu", "<cmd>UndotreeToggle<cr>", desc = "Undo Tree Toggle" },
     },
     init = function()
-      -- Persist undo, refer https://github.com/mbbill/undotree#usage
-      local undodir = vim.fn.expand("~/.undo-nvim")
-
-      if vim.fn.has("persistent_undo") == 1 then
-        if vim.fn.isdirectory(undodir) == 0 then
-          os.execute("mkdir -p " .. undodir)
-        end
-
-        vim.opt.undodir = undodir
-        vim.opt.undofile = true
-      end
-
       -- set layout style to 2, let g:undotree_WindowLayout = 2
       vim.g.undotree_WindowLayout = 2
     end,