The current timeout is too short for some remote workflows. The existing unit test require hitting a real timeout so I've removed it.

See b/171005910

This reverts commit ddab72e7.

Remove devicelab specific code for shutting down gradle daemon, add --android-gradle-daemon option to build/run/drive`. Avoids need for un-tested devicelab specific handler. There are also some feature requests for this, so 2 birds one stone.

Example:

flutter build apk --no-android-gradle-daemon will pass --no-daemon on to gradle

This PR suggests improving the IntelliJ plugin "jar" detection logic.

Previously:
The IntelliJ Flutter plugin was contained flutter-intellij.jar.
Currently:
It is named flutter-intellij-X.Y.Z.jar and does not contain META-INF/plugin.xml.
META-INF/plugin.xml is included in flutter-idea-X.Y.Z.jar.

So this PR changes the rules for searching the plugin's jar file.
Concretely, it looks for the jar file containing META-INF/plugin.xml in the plugin's package directory and reads the package version from its META-INF/plugin.xml.
Co-authored-by: Jonah Williams <jonahwilliams@google.com>

This reverts commit a8375576.

Transport `e2e` based perforamnce test to `integration_test` and remove duplicate `watchPerformance` (#67594)

We'd like to see how many of these flakes are transient and how many involve the device/machine getting temporarily wedged. Add a retry with no delay to see if it is possible to add sufficient error handling to startApp/installApp to handle this.

Date Picker jumps back to initialDatePickerMode after day selection.

Both start and stop app create an application package, but only start app used the application binary. Create the application package once and pass it to both start and stop app.

* Generate pubspec.yaml for synthetic package if it did not exist prior