We originally added this functionality in bug 1566855 because we were
seeing a significant amount of orphaned crashes not being submitted.
Notably some of these were early content process startup crashes and
missing them made us unaware of severe issues that would affect our
users. In the meantime we've addressed most of the cases where a crash
would be orphaned. Since the crashes submitted this way have a buildid
that does not match the version of Firefox that actually crashed they
can be confusing during crash triage.
Given the above we can safely remove this functionality. This patch
reverts most of the changes from bug 1566855 but leaves the test
refactorings in place.
Differential Revision: https://phabricator.services.mozilla.com/D78219
cbadcd16da