Reverts "Roll Dart SDK from 44635f897535 to 733062367c2e (1 revision) (#54541)"

[auto-submit]

Reverts: #54541

Initiated by: zanderso

Reason for reverting: Analyzer change incorrectly flags unused final field as uninitialized? https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8739656817167901393/+/u/run_test.dart_for_customer_testing_shard_and_subshard_None/stdout

Original PR Author: skia-flutter-autoroll

Reviewed By: {fluttergithubbot}

This change reverts the following previous change:

https://dart.googlesource.com/sdk.git/+log/44635f897535..733062367c2e

2024-08-13 [email protected] Version 3.6.0-147.0.dev

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/dart-sdk-flutter-engine
Please CC [email protected],[email protected] on the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter Engine: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

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