[docker-compose] remove redundant env var (#49)

diff --git a/docker-compose/docker-whisk-controller.env b/docker-compose/docker-whisk-controller.env
index 6207f9c..fe0ab38 100644
--- a/docker-compose/docker-whisk-controller.env
+++ b/docker-compose/docker-whisk-controller.env
@@ -21,11 +21,6 @@
 LIMITS_TRIGGERS_FIRES_PERMINUTE=60000
 LIMITS_ACTIONS_INVOKES_CONCURRENTINSYSTEM=5000
 LIMITS_ACTIONS_SEQUENCE_MAXLENGTH=20
-LIMITS_ACTIONS_INVOKES_PERHOUR=3600000
-LIMITS_ACTIONS_INVOKES_PERMINUTE=60000
-LIMITS_ACTIONS_INVOKES_CONCURRENT=5000
-LIMITS_TRIGGERS_FIRES_PERMINUTE=60000
-LIMITS_ACTIONS_INVOKES_CONCURRENTINSYSTEM=5000
 
 LOADBALANCER_ACTIVATIONCOUNTBEFORENEXTINVOKER=10
 LOADBALANCER_INVOKERBUSYTHRESHOLD=16