blockchain: Remove unused db update tracking. #3065
Merged
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This is rebased on #3060.Many years ago, the various threshold states were stored in the database due to performance reasons. However, that logic was removed when the code was updated to support voting since other changes made it quite efficient to simply calculate the states at startup.
However, it appears that the
dbUpdates
field was not removed even though it's not actually used anymore. This removes the field and associated logic accordingly.