reverting slurm-gke blueprint changes

Author: agrawalkhushi18

community/examples/slurm-gke/slurm-gke.yaml

@@ -121,6 +121,15 @@ deployment_groups:
       machine_type: c2-standard-16
       zones: [$(vars.zone)]
 
+  - id: gke_ns_manifest
+    source: modules/management/kubectl-apply
+    use: [gke_cluster]
+    settings:
+      apply_manifests:
+      - source: $(ghpc_stage("./files/slurm-namespace.yaml.tftpl"))
+        template_vars:
+          namespace: $(vars.slurm_namespace)
+
   - id: slinky
     source: community/modules/scheduler/slinky
     use: