Delete envsetup.sh functions that haven't worked for a long time.

- Bugreports don't go to /sdcard/bureports, and adb bugreport has
  a much better UI now.
- I don't hink smoketest hasn't worked since the original Android
  git contribution, based on the path names in this function.

Bug: 340648588
Test: treehugger
Change-Id: Ie450f9740aa3fe7af50d64c2d9d7da56d6d3e39a