[Cherry-pick] Clean up subscription if callback returns dead object exception

Bug: 276644122
Test: statsd_test
Test: libstatspull_test
Test: m
Merged-In: I8fb68b4c29eb929892f750db6aad3af7e1d0fd4c
Change-Id: I8fb68b4c29eb929892f750db6aad3af7e1d0fd4c
(cherry picked from commit 9cab9f4096374d6af593a35a9e501e1b3b2a5886)