simplification

x/oracle/abci/proposal.go

@@ -178,9 +178,7 @@ func (h *ProposalHandler) PreBlocker(ctx sdk.Context, req *abci.RequestFinalizeB
 		}
 
 		// set oracle prices using the passed in context, which will make these prices available in the current block
-		if err := h.keeper.SetOraclePrices(ctx, injectedVoteExtTx.StakeWeightedPrices); err != nil {
-			return nil, err
-		}
+		h.keeper.SetOraclePrices(ctx, injectedVoteExtTx.StakeWeightedPrices)
 
 		// Do slash who did miss voting over threshold and
 		// reset miss counters of all validators at the last block of slash window

x/oracle/abci/vote_extensions.go

@@ -106,8 +106,7 @@ func (h *VoteExtHandler) VerifyVoteExtensionHandler(_ OracleConfig) sdk.VerifyVo
 		}
 
 		// Verify incoming prices from a validator are valid. Note, verification during
-		// VerifyVoteExtensionHandler MUST be deterministic. For brevity and demo
-		// purposes, we omit implementation.
+		// VerifyVoteExtensionHandler MUST be deterministic.
 		if err := h.verifyOraclePrices(ctx, voteExt.Prices); err != nil {
 			return nil, fmt.Errorf("failed to verify oracle prices from validator %X: %w", req.ValidatorAddress, err)
 		}

x/oracle/keeper/keeper.go

@@ -179,11 +179,10 @@ func (k Keeper) GetSubspace() paramstypes.Subspace {
 	return k.paramSpace
 }
 
-func (k Keeper) SetOraclePrices(ctx sdk.Context, prices map[string]math.LegacyDec) error {
+func (k Keeper) SetOraclePrices(ctx sdk.Context, prices map[string]math.LegacyDec) {
 	for b, q := range prices {
 		k.SetExchangeRateWithEvent(ctx, b, q)
 	}
-	return nil
 }
 
 type (