fix: update simapp to use correct default broadcast mode (cosmos#9408)

Author: alexanderbez

simapp/simd/cmd/root.go

@@ -45,7 +45,6 @@ func NewRootCmd() (*cobra.Command, params.EncodingConfig) {
 		WithLegacyAmino(encodingConfig.Amino).
 		WithInput(os.Stdin).
 		WithAccountRetriever(types.AccountRetriever{}).
-		WithBroadcastMode(flags.BroadcastBlock).
 		WithHomeDir(simapp.DefaultNodeHome).
 		WithViper("") // In simapp, we don't use any prefix for env variables.