Revert "fix assertion in beacon block creation rollback/restore (#2655)"

This reverts commit 9d48097.

Author: arnetheduck

beacon_chain/validators/validator_duties.nim

@@ -313,7 +313,7 @@ proc makeBeaconBlockForHeadAndSlot*(node: BeaconNode,
       # TODO address this ugly workaround - there should probably be a
       #      `state_transition` that takes a `StateData` instead and updates
       #      the block as well
-      doAssert v.addr == addr proposalStateAddr.data.hbsPhase0
+      doAssert v.addr == addr proposalStateAddr.data
       assign(proposalStateAddr[], poolPtr.headState)
 
     return makeBeaconBlock(