Remove versioning

This lead to build failures and makes little sense for a sample repo.

Author: filiph

pubspec.yaml

@@ -48,14 +48,6 @@ melos:
       - "."
 
   command:
-    version:
-      # Generate commit links in package changelogs.
-      linkToCommits: true
-      # # Only allow versioning to happen on main branch.
-      # branch: master
-      # Additionally build a changelog at the root of the workspace.
-      workspaceChangelog: true
-
     bootstrap:
       # It seems so that running "pub get" in parallel has some issues (like
       # https://github.com/dart-lang/pub/issues/3404). Disabling this feature