Removing DataFrom referencing allKeys (until it is reimplemented)

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

docs/snippets/azkv-external-secret.yaml

@@ -35,7 +35,3 @@ spec:
     remoteRef:
       key: key/dev-key-test
 
-  # dataFrom , return ALL secrets saved in the referenced secretStore
-  # each secret name in the KV will be used as the secret key in the SECRET k8s target object
-  dataFrom:
-  - name: "*"