perform cleanup of pause image layers for hypervisor isolation

Presently, during the cleanup workflow, we were skipping the cleanup of image layers for pause container. This was because the cleanup happened automatically since the UVM was terminated. With multi-pod feature, that is not true and hence we are performing pause image cleanup in all cases.

Signed-off-by: Harsh Rawat <[email protected]>

Author: rawahars

internal/hcsoci/resources_lcow.go

@@ -35,11 +35,7 @@ func allocateLinuxResources(ctx context.Context, coi *createOptionsInternal, r *
 			return errors.Wrap(err, "failed to mount container storage")
 		}
 		coi.Spec.Root.Path = rootPath
-		// If this is the pause container in a hypervisor-isolated pod, we can skip cleanup of
-		// layers, as that happens automatically when the UVM is terminated.
-		if !isSandbox || coi.HostingSystem == nil {
-			r.SetLayers(closer)
-		}
+		r.SetLayers(closer)
 		r.SetLcowScratchPath(scratchPath)
 	} else if coi.Spec.Root.Path != "" {
 		// This is the "Plan 9" root filesystem.