Greg Fitzgerald 45b2c138e5
Remove circular dependencies in blocktree (#6494)
* Delete dead code

* Flatten modules

* Break blocktree dependency cycle

* Move BloctreeError into blocktree_db

Fewer dependency cycles

* Inline column family names

Fewer circular dependencies

* Cleanup imports

* Fix build
2019-10-22 09:20:19 -06:00
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