Revert "add versions and constraints for packages and samples"

This is currently blocking us from testing samples.

BUG=
R=kasperl@google.com

Review URL: https://codereview.chromium.org//59513007

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/watcher@29960 260f80e4-7a28-3924-810f-c04153c831b5
1 file changed
tree: 1fe3be985454dc8482f948f02a7d7914737ff356
  1. pkgs/