2a14259fd0
This is a final cleanup of CheckedSmiOpInstr and CheckedSmiComparisonInstr instructions. Their uses were removed in the following changes: https://dart-review.googlesource.com/c/sdk/+/191761 https://dart-review.googlesource.com/c/sdk/+/191760 https://dart-review.googlesource.com/c/sdk/+/193447 TEST=ci Issue: https://github.com/dart-lang/sdk/issues/44852 Change-Id: Ica52ab9e2fcabab1913228818642a27a8d842f92 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/193449 Commit-Queue: Alexander Markov <alexmarkov@google.com> Reviewed-by: Ryan Macnak <rmacnak@google.com>