Normally we can rename/remove redis commands using config file
rename-command CONFIG b840fc02d524045429941cc15f59e41cb7be6c52
rename-command CONFIG ""
Is this possible in AWS redis?
Simple answer: No this is not possible.
You can find all the parameters that can be configured in: http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/ParameterGroups.Redis.html