Delete enable_normal_mode_for_inputs from defaults.lua

Follow up for bug introduced in PR nvim-neo-tree#1372

nvim-neo-tree#1372 (comment)

Author: rrrix

lua/neo-tree/defaults.lua

@@ -19,7 +19,6 @@ local config = {
   enable_opened_markers = true,   -- Enable tracking of opened files. Required for `components.name.highlight_opened_files`
   enable_refresh_on_write = true, -- Refresh the tree when a file is written. Only used if `use_libuv_file_watcher` is false.
   enable_cursor_hijack = false, -- If enabled neotree will keep the cursor on the first letter of the filename when moving in the tree.
-  enable_normal_mode_for_inputs = false, -- Enable normal mode for input dialogs.
   git_status_async = true,
   -- These options are for people with VERY large git repos
   git_status_async_options = {