Remove request logging which exposes model data (#134)

* Remove request logging which exposes model data

In some cases the model may contain sensitive data which shouldn't be logged.

* log import no longer used

cfn/handler/request.go

@@ -1,8 +1,6 @@
 package handler
 
 import (
-	"log"
-
 	"github.com/aws/aws-sdk-go/aws/session"
 
 	"github.com/aws-cloudformation/cloudformation-cli-go-plugin/cfn/cfnerr"
@@ -38,8 +36,6 @@ type Request struct {
 
 // NewRequest returns a new Request based on the provided parameters
 func NewRequest(id string, ctx map[string]interface{}, sess *session.Session, previousBody, body []byte) Request {
-	log.Printf("Creating request:\nPrev body: %s\nCurr body: %s", previousBody, body)
-
 	return Request{
 		LogicalResourceID:              id,
 		CallbackContext:                ctx,