Don't use new_async

It doesn't seem to be improving stuff as it is not supposed to

Due to the half baked stats of the startuptime plugin, people were fooled

no point in disabling filetype and whatenot

See some discussion here: https://github.com/siduck76/NvChad/issues/175

lua/options.lua

@@ -1,13 +1,6 @@
 local opt = vim.opt
 local g = vim.g
 
--- Turn these off at startup, will be enabled later just before loading the theme
-vim.cmd([[
-    syntax off
-    filetype off
-    filetype plugin indent off
-]])
-
 opt.ruler = false
 opt.hidden = true
 opt.ignorecase = true