Remove Undotree, never used it

home/.config/nvim/lua/plugs/undotree.lua

@@ -1,12 +0,0 @@
-return {
-    "mbbill/undotree",
-    event = "VeryLazy",
-    lazy = true,
-    config = function()
-        require("utils").add_keymaps({
-            n = {
-                ["<leader>ud"] = { cmd = ":UndotreeToggle<CR>", opts = { silent = true } }
-            }
-        })
-    end
-}