Revert "Address key open items and move KEP to implementable state"

This reverts commit 29d95bc.

Author: vinaykul

keps/sig-autoscaling/20181106-in-place-update-of-pod-resources.md

@@ -23,8 +23,8 @@ approvers:
   - "@mwielgus"
 editor: TBD
 creation-date: 2018-11-06
-last-updated: 2019-10-25
-status: implementable
+last-updated: 2018-11-06
+status: provisional
 see-also:
 replaces:
 superseded-by:
@@ -168,12 +168,6 @@ Kubelet calls UpdateContainerResources CRI API which currently takes
 but not for Windows. This parameter changes to *runtimeapi.ContainerResources*,
 that is runtime agnostic, and will contain platform-specific information.
 
-Additionally, GetContainerResources CRI API is introduced that allows Kubelet
-to query currently configured CPU and memory limits for a container.
-
-These CRI changes are a separate effort that does not affect the design
-proposed in this KEP.
-
 ### Kubelet and API Server Interaction
 
 When a new Pod is created, Scheduler is responsible for selecting a suitable
@@ -290,16 +284,6 @@ updates resource limit for the Pod and its Containers in the following manner:
 In all the above cases, Kubelet applies Container resource limit decreases
 before applying limit increases.
 
-#### Container resource limit update failure handling
-
-If multiple Containers in a Pod are being updated, and UpdateContainerResources
-CRI API fails for any of the containers, Kubelet will backoff and retry at a
-later time. Kubelet does not attempt to update limits for containers that are
-lined up for update after the failing container. This ensures that sum of the
-container limits does not exceed Pod-level cgroup limit at any point. Once all
-the container limits have been successfully updated, Kubelet updates the Pod's
-Status.ContainerStatuses[i].Resources to match the desired limit values.
-
 #### Notes
 
 * If CPU Manager policy for a Node is set to 'static', then only integral