This makes the deletion mapreduce more resilient in the face of data integrity
violations (which exist on sandbox but hopefully not in production). Even when
the domain application index doesn't exist, we still want to delete the domain
application itself, as its continuing presence will cause problems after the
code for domain applications is deleted.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=228521794
This also deletes associated entities including indexes and history entries.
This needs to run as a prerequisite to [] which deletes all domain
application code entirely. The entities themselves need to be deleted first so
that loading DomainBases in the future doesn't accidentally get applications
which the code no longer knows how to handle.
This deletion is safe to perform because the only remaining applications in our
system are historical and we no longer refer to them. Backups will be retained
in BigQuery.
This mapreduce will be deleted at the same time that the DomainApplication code
is.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=227738528
