Remove outdated release instruction

Author: axelson

DEVELOPMENT.md

@@ -16,7 +16,6 @@ code --install-extension ./elixir-ls-0.2.44.vsix  --force
 - Ensure you have a clean git repository
 - `vsce publish 0.3.1` (or whatever version) (note that this will create a commit and a tag)
 - `git push upstream --tags`
-- Update the release on github with the elixir-ls.zip file
 - Update forum announcement post: https://elixirforum.com/t/introducing-elixirls-the-elixir-language-server/5857
 
 Also publish to https://open-vsx.org/