This reverts commit a3893aea.

* Reland "add a benchmark test for stack size (#75039)"

This reverts commit de683de9.

* fix typo

This reverts commit 9d9109aa.

Fixes https://github.com/flutter/flutter/issues/73873

* preserve detailFiles entry in TaskResult JSON

Address comment in https://github.com/flutter/flutter/pull/66386/files#r522671103

* [devicelab] work around occasional null values for devtools

* Update perf_tests.dart

These devicelab tests are incredibly flaky. Currently they will build & install the same application 15 times. This causes the temp storage to fill up on android, and has a good chance of flaking on iOS due to install issues.

The change from 3 to 15 increased total test time for 2 -> 12 minutes on iOS, or roughly 5 more test equivalents for every single iOS test. Reduce the iteration count back to 5

Uninstall the app after each run so temp storage does not fill up.

Revert "[devicelab] reduce iterations, uninstall at end, and use  --application-binary in all startup tests (#68516)" (#68531)

This reverts commit a4c2075a.

This reverts commit 0f69f8e5.