Remove changelog items released as part of 22.8.2 (#6145)

CHANGELOG.md

@@ -18,11 +18,5 @@ For information on changes in released versions of Teku, see the [releases page]
 ### Breaking Changes
 
 ### Additions and Improvements
-- Added Gas Limit APIs (GET/POST/DELETE)
-- Skip finding the PoW block that first satisfies the minimum genesis time condition when the genesis state is already known. Fixes an incompatibility with Nethermind's backwards sync for historic blocks.
-- Circuit breaker logic added when interacting with Builder endpoint
-- VC using failover nodes for retrieving the network spec when `--network=auto` and multiple beacon nodes are configured
 
-### Bug Fixes
-- Fixed `io.libp2p.core.InternalErrorException: [peerHandler] not initialized yet` error from jvm-libp2p
-- Fixed VC incompatibility with Nimbus BN for the `/eth/v1/validator/beacon_committee_subscriptions` endpoint
+### Bug Fixes