Drop builderror crc32 column #3352
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CDash historically used crc32 hashes to determine uniqueness for various record types as part of a complex deduplication scheme. This has caused numerous issues over the years, with frequent bugs and changes to the hashing logic. Instead, we're now in the process of switching to a system where full records are matched against rather than hashes. This PR removes the builderror crc32 column. No performance hits are expected as a result of this change, because the database can still look up records efficiently by build ID.