[UI] Remove deprecated WAL-E library and enable WAL-G backup support in UI backend (#2915)

charts/postgres-operator-ui/values.yaml

@@ -62,8 +62,6 @@ podAnnotations:
 extraEnvs:
   []
   # Exemple of settings to make snapshot view working in the ui when using AWS
-  # - name: WALE_S3_ENDPOINT
-  #   value: https+path://s3.us-east-1.amazonaws.com:443
   # - name: SPILO_S3_BACKUP_PREFIX
   #   value: spilo/
   # - name: AWS_ACCESS_KEY_ID
@@ -83,8 +81,6 @@ extraEnvs:
   #       key: AWS_DEFAULT_REGION
   # - name: SPILO_S3_BACKUP_BUCKET
   #   value: <s3 bucket used by the operator>
-  # - name: "USE_AWS_INSTANCE_PROFILE"
-  #   value: "true"
 
 # configure UI service
 service: