The agnostic mode was added to allow the platform dill embedded in
the VM to support both weak and strong mode. Since weak mode is no
longer supported in the VM, the agnostic mode can new be deleted.
All uses of the agnostic in Dart and Flutter have been removed prior
to this change.
Change-Id: Iff0f69d9cd64e887e01cd7e7d336a97761bd6d4b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/366801
Reviewed-by: Alexander Thomas <athom@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Johnni Winther
c5cd8ff349