fixed typo in ecs-cluster policies

Author: briancaffey

cloudformation/infrastructure/ecs-cluster.yaml

@@ -172,7 +172,6 @@ Resources:
       ManagedPolicyArns:
         - arn:aws:iam::aws:policy/service-role/AmazonEC2RoleforSSM
         - arn:aws:iam::aws:policy/CloudWatchAgentServerPolicy
-        - arn:aws:iam::aws:policy/S
       Policies:
         - PolicyName: s3-access
           PolicyDocument: |