remove duplicate render of journal

app/controllers/journals_controller.rb

@@ -55,8 +55,6 @@ class JournalsController < ApplicationController
           if success_blockchain == false
             normal_status(-1, "评论失败")
             raise ActiveRecord::Rollback
-          else
-            render json: {status: 0, message: "评论成功", id: journal.id}
           end
 
           render :json => { status: 0, message: "评论成功", id:  journal.id}