Revert "Reland "Upgrade Gradle and AGP versions to 7.5/7.2 and migrate benchmarks+examples" (#108355)" (#108407)

This reverts commit c4b3625d.

* Modify dataMap to include assertiveness only if it's not set to polite to prevent google3 tests from breaking

* small code style enhancement

* 125a4b4a0 Roll Skia from c334e0933076 to a9d44a41296f (1 revision) (flutter/engine#34909)

* 763feb4a0 Roll Skia from a9d44a41296f to b7e27876f093 (1 revision) (flutter/engine#34911)

* 9388b8ec4 [Impeller] [vulkan] Wire-up creating pipeline (flutter/engine#34890)

* bdcc9603d Roll buildroot deps (flutter/engine#34894)

* 9a8686477 Roll Dart SDK from c77db322733f to 52c6d32a67b6 (1 revision) (flutter/engine#34914)

* 1a9eb883b Roll Fuchsia Linux SDK from JG8eZzFic... to 4xjxrGUrD... (flutter/engine#34915)

* 4c613a63a Remove the OpenGL backend on iOS (flutter/engine#34913)

[gen_l10n] Warn users when placeholder types are converted to 'num' when using pluralization (#108036)

* init

* asdf

* fix tests

* change warning slightly

* fix test again

* fix spacing and comment

* fix lint

* Hide the debug banner in the PopupMenuButton example

* Add test to verify that debug banner is not shown

* [flutter_tools] [dap] Ensure DAP sends app.stop/app.detach during terminate

Fixes an issue where the flutter_tester device may not be cleaned up correctly if we just terminate the Flutter process.

* Update integration test expectations

* Revert accidental commit

Explain the "patching" protocol in `KeyMessageManager.keyMessageHandler` and add an example (#105280)

This reverts commit ca6cecf0.

* Added iconSize parameter in ButtonStyle
Co-authored-by: Qun Cheng <quncheng@google.com>

* init

* testS

* init

* accidentally committed wrong file

* Support material 3 in inputDecorator

* Format polish

* format polish

* update input_decorator_test

* revert pub

* style update

* style polish

* default before base

* resolve comments

* Update text_field.2.dart

* move text styles into M2 theme

* add error style

* fix typo

* resolve comments

* fix g3 test

Since https://github.com/dart-lang/sdk/commit/02d9c3e6a586ad47909262931375f25abb34b4e3 this flag does absolutely nothing. The behaviour it controlled is now automatic and the flag is not required.

The flag will be removed from the Dart SDK in the future after Flutter is no longer using it.

Revert "Add optional flag to determine assertiveness level in aria announcement for flutter web" (#108262)