webnn: Migrate BatchNormalization validation tests to WPTs
This CL adds WPT tests for BatchNormalization and removes the unit tests
MLGraphTestMojo.BatchNormalizationTest and
MLGraphBuilderTest.BatchNormalizationTest.
Bug: 327337526, 328026885
Change-Id: Idb18eecdb85ff6dc60a682266c4b41afe06e3532
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5541389
Commit-Queue: Shanxing Mei shanxing.mei@intel.com
Reviewed-by: ningxin hu ningxin.hu@intel.com
Reviewed-by: Austin Sullivan asully@chromium.org
Cr-Commit-Position: refs/heads/main@{#1307834}