[devicelab] turn down android X migration gradle tests - #68110

It this the correct way to do it? or do I need to make recipe changes too?

It this the correct way to do it? or do I need to make recipe changes too?

For try jobs, these changes are enough. But for prod builders, these change will only avoid status showing up on flutter-dashboard, but these builders will still run and show up in the milo dashboard. So for the prod builders, flutter/infra config changes are needed to stop running them.

@godofredoc made quite some effort to make all these hostonly devicelab tests running, will leave approval to him.

FYI @blasten , these tests have been failing on and off for the past few weeks because the LUCI bots are having problems downloading the firebase dependencies. If we can find a way to run this test with a reduced or local only dependency then it could be re-added