[ROCm] Remove expected inductor UT fails for batch norm (#107027)
Removing expected failures relating to inductor batch_norm on ROCm
Also removing the addition of `tanh` to expected failures list as this is a cuda exclusive failure already captured here (cc: @peterbell10)
```
if not TEST_WITH_ROCM:
inductor_gradient_expected_failures_single_sample["cuda"]["tanh"] = {f16}
```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/107027
Approved by: https://github.com/peterbell10
