Revert "further increase dev2 file gen task"

This reverts commit ac88cae45c0d9b2f3134f9eb46d479395986f4b2.

crss-settlement-task-invoice-generation/crss-settlement-task-invoice-generation-dev2.yml

@@ -33,8 +33,8 @@ spring:
     deployer:
       mesos:
         chronos:
-          memory: 8192
-          cpu: 2
+          memory: 6144
+          cpu: 1.5
           constraints: rack,EQUAL,rack-monthly
 
 batch: