[ package:vm_service ] Remove package:test timeouts for package:vm_service tests
[ package:vm_service ] Remove package:test timeouts for package:vm_service tests

We'll let test.py kill the tests based on its own timeout settings.

Change-Id: I2dab10e16d936b4c7cfffcab3e78370c00733cb5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/143180
Reviewed-by: Siva Annamalai <2e618a8cbd7bb6b3d4409061ae407d692a098546@google.com>

dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk