remove letter icons from nerdtree

lua/plugconfig.lua

@@ -41,10 +41,6 @@ vim.keymap.set("n", "<leader>fc", builtin.commands, {})
 require("telescope").load_extension("ultisnips")
 vim.keymap.set("n", "<leader>fs", require("telescope").extensions.ultisnips.ultisnips, {})
 
--- NERDTree Config
-vim.g.NERDTreeDirArrowExpandable = ""
-vim.g.NERDTreeDirArrowCollapsible = ""
-
 -- Git-Blame configuration
 vim.g.gitblame_message_template = "		=>	<author> • <date> • <summary>"
 vim.g.gitblame_date_format = "%r"