2c8966bbc8
PackageInstallStateChangedTask had some redundant state handling that could lead to invalid states. Removed state handling (potential fix to b/198924992) along with logging to help debug b/198924992.
Test: Started and canceled an app download
Bug: 198924992
Change-Id: I8b8202ceb62a3265186d8d46a0e1be6afc83c080
(cherry picked from commit fbf4178ab7)