Revert "adb: close ep0 on disconnection."
am: 8c4076295e

* commit '8c4076295ebd867d276636d673b9f8e6a8df01a6':
  Revert "adb: close ep0 on disconnection."

Change-Id: I74112ef3f508016238a3eb1224292aa4d77334d5