* eth, miner: remove duplicated code

* eth/catalyst: remove unneeded code

* miner: keep update pending state even the Merge is happened

* eth, miner: rebase

* miner: fix tests

* eth, miner: address comments from marius

* miner: use empty zero randomness for pending blocks after the merge

* eth/catalyst: gofmt

* miner: add warning log for state recovery

* miner: ignore uncles for post-merge blocks
Co-authored-by: Péter Szilágyi <peterke@gmail.com>