#13298 was shipped to hit the nv27 cutoff deadlines. As specified in the PR, there is some cleanup work to do. This is tracking those items:

• Remove LOTUS_ETH_V1_DISABLE_F3_FINALITY_RESOLUTION option
• Remove builder_chain.go split paths for v1 and v2 Eth module building - reuse same modules across v1 and v2.
• Simplify eth_api_f3_test.go to remove special rules for v1 vs v2 - test same rules