The archiving was running in devicelab because certs are needed to codesign (see #73577).  However now the certs are available in chromium bots.  Move the archiving test into the existing tool integration test, and delete the devicelab variant.

arm64:
https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8757886514651624673/+/u/run_test.dart_for_tool_host_cross_arch_tests_shard_and_subshard_None/test_stdout#L6074_4
x64:
https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8757886514651624689/+/u/run_test.dart_for_tool_host_cross_arch_tests_shard_and_subshard_None/test_stdout#L6389_2

Part of https://github.com/flutter/flutter/issues/142070