core: types: use []byte for block Payload type (#101)

Change payload type to []byte instead of [][]byte to make it more
generic. The user of the consensus core should marshal the payload into
a byte slice by themselves.

1 files changed, 3 insertions, 3 deletions

diff --git a/simulation/app.go b/simulation/app.go
index c312204..40aa32b 100644
--- a/simulation/app.go
+++ b/simulation/app.go
@@ -94,9 +94,9 @@ func (a *simApp) getAckedBlocks(ackHash common.Hash) (output common.Hashes) {
 	return
 }
 
-// PreparePayloads implements core.Application.
-func (a *simApp) PreparePayloads(position types.Position) [][]byte {
-	return [][]byte{}
+// PreparePayload implements core.Application.
+func (a *simApp) PreparePayload(position types.Position) []byte {
+	return []byte{}
 }
 
 // StronglyAcked is called when a block is strongly acked by DEXON