remove stat logs in dataflow app

crss-dataflow-app/application-dev2.yml

@@ -14,7 +14,6 @@ spring:
     generate-ddl: false
     properties:
       hibernate:
-        generate_statistics: true
         dialect: org.hibernate.dialect.PostgreSQLDialect
         ddl-auto: none
         hbm2ddl:
@@ -58,8 +57,6 @@ logging:
     com.netflix: DEBUG
     org.springframework.cloud: DEBUG
     org.apache.http: DEBUG
-    org.hibernate.type: trace
-    org.hibernate.stat: debug
 
 dataflow:
   url: http://spring-cloud-data-flow.marathon.l4lb.thisdcos.directory:9393