Revert "Gross hack"

This reverts commit cbe92f5.

Author: Scott Crosby

scheduler/src/cook/kubernetes/api.clj

@@ -1581,15 +1581,7 @@
         (when use-checkpoint-injection?
           (let [{:keys [command]} checkpoint-container
                 container (V1Container.)
-                resources (V1ResourceRequirements.)
-                ; Gross hack becuase init containers are running in the wrong order, fetch the tickets early.
-                ticket-volumemount
-                (doto (V1VolumeMount.)
-                  (.setName "kerberos-ticket-volume")
-                  (.setMountPath "/var/secret")
-                  (.readOnly true))
-                ]
-
+                resources (V1ResourceRequirements.)]
             ; container
             (.setName container cook-container-name-for-checkpoint-injection)
             (.setImage container image)
@@ -1598,8 +1590,7 @@
             (.setWorkingDir container init-container-workdir)
             (.setEnv container main-env-vars)
             (.setVolumeMounts container (filterv some? (concat [(init-container-workdir-volume-mount-fn false)
-                                                                (scratch-space-volume-mount-fn false)
-                                                                ticket-volumemount]
+                                                                (scratch-space-volume-mount-fn false)]
                                                                init-container-checkpoint-volume-mounts)))
             (set-mem-cpu-resources resources total-memory-request total-memory-limit total-cpu-request total-cpu-limit)
             (.setResources container resources)