Clean up undecodable Locks and SessionKeys

This referendum cleans up all undecodable keys from storage.

The first 19 keys removed are undecodable Locks, which were not migrated correctly during a runtime upgrade in 2019. See this issue and this PR for more info.

The remaining 381 keys removed are undecodable, inactive SessionKeys also likely created due to a bad runtime upgrade. See this comment, this issue, and this other issue for more info.

This call was programatically created and verified for safety checking that

There are no longer any undecodable keys on Kusama
Only Locks from the faulty 2019 runtime upgrade are removed
No session keys removed are from the active validator set

using the code at this commit.

Whitelisted by Fellowship in this referenda.

The identity for this account is verified on Polkadot - liamaharon Fellowship rank I.

This vote removes old, broken keys from storage.
19 keys were from a 2019 upgrade that went wrong.
381 more keys were inactive and couldn't be read.
No active validators were affected.
The removal was checked by code to be safe.
The Fellowship group approved this change.
The person who suggested this is verified.

Source

This referendum cleans up all undecodable keys from storage.

The first 19 keys removed are undecodable Locks, which were not migrated correctly during a runtime upgrade in 2019. See this issue and this PR for more info.

The remaining 381 keys removed are undecodable, inactive SessionKeys also likely created due to a bad runtime upgrade. See this comment, this issue, and this other issue for more info.

This call was programatically created and verified for safety checking that

There are no longer any undecodable keys on Kusama
Only Locks from the faulty 2019 runtime upgrade are removed
No session keys removed are from the active validator set

using the code at this commit.

Whitelisted by Fellowship in this referenda.

The identity for this account is verified on Polkadot - liamaharon Fellowship rank I.