feat(lsp.util): remove uneeded do-end

runtime/lua/vim/lsp/util.lua

@@ -1238,7 +1238,7 @@ function M.stylize_markdown(bufnr, contents, opts)
   local highlights = {} --- @type {ft:string,start:integer,finish:integer}[]
   -- keep track of lnums that contain markdown
   local markdown_lines = {} --- @type table<integer,boolean>
-  do
+
   local i = 1
   while i <= #contents do
     local line = contents[i]
@@ -1290,7 +1290,6 @@ function M.stylize_markdown(bufnr, contents, opts)
       i = i + 1
     end
   end
-  end
 
   -- Handle some common html escape sequences
   --- @type string[]