Put the actual SHA if used to the test plan instead of test cases

There is no need to repeat the version info for individual test cases.

It is evident from the milestone and test plan name. And in case that the SHA is needed, it is better to put that in one place as identifier.

Definition of Done

1. New test case results have the redudant info omitted
2. The test plan or the specific run itself contains the specific data that is valid for all related tests