tree b36875c2d446874dad97c77844487899b375aafc
parent 687b55261c2e0e9732ab8b59e85872a863a0f1f5
author Josh Gao <jmgao@google.com> 1575927931 -0800
committer Josh Gao <jmgao@google.com> 1576100441 -0800

adb: remove atransport ref counting.

The reference count is always 0 or 1.

Test: ./test_adb.py
Change-Id: I669f98f4996f4e41ac037f1add9c47819d4003d4