Update __init__.py

[techshot25]

"Look mom, no hands!" This was unnecessary and only caused torchvision to stop working.

Fixes # .

Changes proposed in this pull request:

• Fix missing PILLOW_VERSION

[hugovk]

Thanks for the PR.

This was fixed in torchvision in October (pytorch/vision#1501) and a new release is due out early next week (pytorch/vision#1712).

In any case, the next Pillow release isn't due out until April, so either

• wait for the new torchvision early next week
• use torchvision master (pip install git+https://github.com/pytorch/vision.git)
• patch Pillow 7 as per this PR
• or use Pillow 6 until then (pip install "pillow<7")

[hugovk]

torchvision v0.5.0 has been released with the fix:

1. Require torchvision>=0.5.0
2. If Pillow was temporarily pinned, remove the pin