Revert "Import external/python/jinja into master" am: 81aec74062

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/python/jinja/+/12168040

Change-Id: Ib35f6cdec68555f3ca46e74e63c3fb781a2471ec
tree: 4b825dc642cb6eb9a060e54bf8d69288fbee4904

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