Clean up staged session data on validation failure

Bug: 173132101
Test: manual test using `adb install --staged foo.apk` multiple times
Test: manual test using `adb install-multi-package --staged foo.apk bar.apk`
Change-Id: Idd6597cd0d2dda34a8a7626b585401eeee39c31f
Merged-In: Idd6597cd0d2dda34a8a7626b585401eeee39c31f
(cherry picked from commit f54412183a19916f6ce704f113967b8b19ef6ed8)
1 file changed