db: clear blobs when using --clear-db or --force-clear-db #13605
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What type of PR is this?
Feature
What does this PR do? Why is it needed?
When a user sets
--clear-dbor--force-clear-dbthey are expecting to erase all of Prysm's longterm data. Understandably, the users may expect that blobs are cleared as well.
Which issues(s) does this PR fix?
Fixes #13547
Other notes for review
Also put a
Close()call in theClearDB()method as every caller was closing the DB anyway. It should be safe to do this. I verified at runtime that this worked OK