Remove no longer needed workaround

lua/init.lua

@@ -1,10 +1,3 @@
--- Work around https://github.com/neovim/neovim/issues/21856
-vim.api.nvim_create_autocmd({ "VimLeave" }, {
-  callback = function()
-    vim.fn.jobstart("/bin/true", { detach = true })
-  end,
-})
-
 vim.diagnostic.config({
   -- Use the default configuration
   -- virtual_lines = true,