refactor: delete unused options

lua/config/settings.lua

@@ -8,8 +8,6 @@ local function add(value, str, sep)
 end
 
 -- Globals {{{
--- g.do_filetype_lua = 1
--- g.did_load_filetypes = 0
 g.netrw_liststyle = 1
 g.netrw_banner = 0
 g.netrw_list_hide = '^\\..*'
@@ -54,8 +52,6 @@ opt.iskeyword:prepend { '-' }
 opt.inccommand = 'nosplit'
 opt.completeopt = { 'menu', 'menuone', 'noselect' }
 opt.timeoutlen = 300
-opt.conceallevel = 3
-opt.concealcursor = 'n'
 opt['foldenable'] = false
 -- opt.fillchars = 'vert:▏'
 opt.fillchars.eob = ' '