Revert "Fixed the DUT  did not disconnect from the network bug" am: d4cd17d9a2

Original change: https://googleplex-android-review.googlesource.com/c/platform/tools/test/connectivity/+/16708426

Change-Id: Iaff864ddd8a78c2b8bc79700adc6f92c73f187fa
tree: 0574775b25f1fc37d5beea37e8dbd309925c113c
  1. acts/
  2. acts_tests/
  3. tools/
  4. wts-acts/
  5. Android.mk
  6. OWNERS
  7. PREUPLOAD.cfg