tree fa0127d9efbdfd64eb2fedf1e88eab16d43cd4c3
parent ffc883bea089cf42cf726da4062120f630c39003
author June Tate-Gans <jtgans@google.com> 1550273963 -0800
committer June Tate-Gans <jtgans@google.com> 1550273963 -0800

discoverer: Fix a bug in multiple removals

If we get notifications that a host has been lost twice, we can crash out.

Change-Id: Ifeef72d3c41707187d8f9f95674bbd0997b1e7fe