e2e: use more simple strings for generated transactions (#7513)

test/e2e/pkg/manifest.go

@@ -64,7 +64,7 @@ type Manifest struct {
 	QueueType string `toml:"queue_type"`
 
 	// Number of bytes per tx. Default is 1kb (1024)
-	TxSize int64
+	TxSize int
 
 	// ABCIProtocol specifies the protocol used to communicate with the ABCI
 	// application: "unix", "tcp", "grpc", or "builtin". Defaults to builtin.

test/e2e/pkg/testnet.go

@@ -70,7 +70,7 @@ type Testnet struct {
 	KeyType          string
 	Evidence         int
 	LogLevel         string
-	TxSize           int64
+	TxSize           int
 	ABCIProtocol     string
 }