chore: slice loop replace (#11349)

chain/store/messages.go

@@ -212,13 +212,8 @@ func (cs *ChainStore) MessagesForTipset(ctx context.Context, ts *types.TipSet) (
 
 	var out []types.ChainMsg
 	for _, bm := range bmsgs {
-		for _, blsm := range bm.BlsMessages {
-			out = append(out, blsm)
-		}
-
-		for _, secm := range bm.SecpkMessages {
-			out = append(out, secm)
-		}
+		out = append(out, bm.BlsMessages...)
+		out = append(out, bm.SecpkMessages...)
 	}
 
 	return out, nil

chain/store/snapshot.go

@@ -656,9 +656,7 @@ func (cs *ChainStore) WalkSnapshot(ctx context.Context, ts *types.TipSet, inclRe
 		}
 
 		if b.Height > 0 {
-			for _, p := range b.Parents {
-				blocksToWalk = append(blocksToWalk, p)
-			}
+			blocksToWalk = append(blocksToWalk, b.Parents...)
 		} else {
 			// include the genesis block
 			cids = append(cids, b.Parents...)