remove heat test_updates tests

These perform async operations, but expect synchronous results, so
they can often fail if the system is slowed down in the least. These
tests should be removed as they are non deterministic.

Closes-Bug: #1370865

Change-Id: I9f0ef9a2f8a3b8971c6e52b99723fe4137ec2d0a
Merge "remove heat test_updates tests"