[llvm] [VPlan] Delete the redundant overflow check for DataAndControlFlowWithoutRuntimeCheck (PR #79825)

[Florian Hahn via llvm-commits]

https://github.com/fhahn commented:

There's a number of test changes that seem to only adjust the naming in the patterns, can those be undone?

Could you also expand the description a bit, currently it is not clear to me why this change is legal in all cases (see inline comment). Would also be good to explain without need to refer SVE specific instructions.

https://github.com/llvm/llvm-project/pull/79825