Remove python bin declaration in switcher script am: 989ece3570 am: 26fb03f1f9

Original change: https://googleplex-android-review.googlesource.com/c/platform/tools/doc_generation/+/15831227

Change-Id: Ibd1cdb3639d5451b651ab8fc86b7c2ef100bfda2
tree: b01c04b523e6a36bd765224d36e3d11e646229fa
  1. Android.bp
  2. switcher4.py