comment out sendtransaction as it is not used

Author: chenfengjin

kernel/evm/evm.go

@@ -25,7 +25,8 @@ type EVMProxy interface {
 func NewEVMProxy(manager contract.Manager) (EVMProxy, error) {
 	registry := manager.GetKernRegistry()
 	p := proxy{}
-	registry.RegisterKernMethod("$evm", "SendTransaction", p.sendTransaction)
+	// SendTransaction is not used currently
+	// registry.RegisterKernMethod("$evm", "SendTransaction", p.sendTransaction)
 	registry.RegisterKernMethod("$evm", "SendRawTransaction", p.sendRawTransaction)
 	registry.RegisterKernMethod("$evm", "ContractCall", p.ContractCall)
 	return &p, nil