Remove dead/outdated lints from pkg/dev_compiler/README.md
Remove dead/outdated lints from pkg/dev_compiler/README.md

Change-Id: I6f09fcc5e8627b22e2a1e14568218108501ffa8f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/99640
Auto-Submit: Kevin Moore <1d6e7d10d051cf619c5282da3c28fd8d3e0a65a4@google.com>
Reviewed-by: Jenny Messerly <6285f43aa2dd0931180012d62b847adf2c37a418@google.com>
Commit-Queue: Jenny Messerly <6285f43aa2dd0931180012d62b847adf2c37a418@google.com>

dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-lang/sdk,dartino/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-lang/sdk,dart-archive/dart-sdk