fix: Remove Base image from config map

Author: Alan Christie

roles/operator/templates/configmap-data-manager.yaml.j2

@@ -21,7 +21,6 @@ data:
     # (i.e. do not need an ImagePullSecret).
     # The key is the image (including its tag).
     # The value is the image symbolic name.
-    jupyter/base-notebook:2022-09-12 = Base
     jupyter/minimal-notebook:2022-09-12 = Minimal
     jupyter/r-notebook:r-4.1.3 = r v4
     jupyter/scipy-notebook:2022-09-12 = SciPy