Revert Dart SDK to 2ace65b1b408 (#30290)

* Revert "Roll Dart SDK from 01a9d4e9ede7 to a78eae43582d (1 revision) (#30288)"

This reverts commit e28882a.

* Revert "Roll Dart SDK from 49d5a2f58c4a to 01a9d4e9ede7 (1 revision) (#30283)"

This reverts commit 2f97ac4.

* Revert "Roll Dart SDK from f568598a262e to 49d5a2f58c4a (3 revisions) (#30277)"

This reverts commit 8d1272b.

* Revert "Roll Dart SDK from 7b6056f9db7f to f568598a262e (4 revisions) (#30270)"

This reverts commit 5ece42f.

* Revert "Roll Dart SDK from 2091ff49c513 to 7b6056f9db7f (1 revision) (#30259)"

This reverts commit 806d8bc.

* Revert "Roll Dart SDK from 2ace65b1b408 to 2091ff49c513 (8 revisions) (#30251)"

This reverts commit 86769ee.

Author: zanderso

DEPS

@@ -39,7 +39,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/main/DEPS.
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': 'a78eae43582dbc1203e993788fc13f6484923878',
+  'dart_revision': '2ace65b1b4085a8589b97a2368cb0a50d99e9bdf',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -50,7 +50,7 @@ vars = {
   'dart_collection_rev': 'a4c941ab94044d118b2086a3f261c30377604127',
   'dart_devtools_rev': 'f2ede24a4ea666d4832d78b813c7d4e376aa77d0',
   'dart_intl_tag': '0.17.0-nullsafety',
-  'dart_linter_tag': '1.16.0',
+  'dart_linter_tag': '1.15.0',
   'dart_protobuf_rev': 'c1eb6cb51af39ccbaa1a8e19349546586a5c8e31',
   'dart_pub_rev': 'dcb6abac2d7d43258c03b348be42bf4aab9529b1',
   'dart_root_certificates_rev': '692f6d6488af68e0121317a9c2c9eb393eb0ee50',

ci/licenses_golden/licenses_third_party

@@ -1,4 +1,4 @@
-Signature: 5b0065dc5a0d65844aa2f5ce2c4d6ca2
+Signature: 1255f544e7ab5c6f906d1afb5e35fd9b
 
 UNUSED LICENSES: