Delete BUILD files from extracted pypi dependencies

[rickeylev]

An issue I've seen happen at least 3 times is a pypi dependency contains a BUILD file, which then breaks the generated Bazel package.

Why this occurs is a bit unclear because the Bazel docs say that BUILD.bazel should take precedence over BUILD

In any case, after extracting the wheel, we should just delete any BUILD or BUILD.bazel files it created. Such files can only cause issues -- there's no way for them to know what version of bazel or rules_python is being used, so they can't reliably define a bazel package. If one exists in a sub-directory, then it will break glob() (it doesn't cross bazel package boundaries).

Related:

• 🐛 [Bug] Encountered bug when using Torch-TensorRT pytorch/TensorRT#3477
• BUILD files and tests folder included in wheel abseil/abseil-py#332

[rickeylev]

cc @aignas

[aignas]

I was thinking about this as well, thanks for creating the issue.