b8c5ecd5aa
This reverts commit a527411e51.
Reason for revert: depends on package 'devtools_shared' that is not yet migrated.
Original change's description:
> [ package:dds ] Add null safety support
>
> Fixes https://github.com/dart-lang/sdk/issues/45756
>
> TEST=service + DDS tests
>
> Change-Id: I6dd14d7f9fdee479a830c3b053dc3b00aa635202
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/199800
> Commit-Queue: Ben Konyi <bkonyi@google.com>
> Reviewed-by: Devon Carew <devoncarew@google.com>
# Not skipping CQ checks because original CL landed > 1 day ago.
Change-Id: Icdaef3ac55d7ef302acd3f9c2538a41e52e4253a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/200180
Reviewed-by: David Morgan <davidmorgan@google.com>
Commit-Queue: David Morgan <davidmorgan@google.com>