Fixing AWS controller references

Signed-off-by: Gustavo Carvalho <gustavo.carvalho@container-solutions.com>

docs/snippets/aws-parameter-store.yaml

@@ -3,7 +3,6 @@ kind: SecretStore
 metadata:
   name: secretstore-sample
 spec:
-  controller: dev
   provider:
     aws:
       service: ParameterStore

docs/snippets/aws-sm-store.yaml

@@ -3,7 +3,6 @@ kind: SecretStore
 metadata:
   name: secretstore-sample
 spec:
-  controller: dev
   provider:
     aws:
       service: SecretsManager