TASK: Simplify asset usage catchup hook to not optimise partial discard

Instead of fine granular updating only the usage references on the nodes that were discarded, well throw away everything and then rely on the reapplied events what is kept.

This is more consistent to how other parts react to publishing like the graph just forks a new content stream and doesnt care about the old data, the change projection behaves similar to the graph.
And for the content cache flusher we had the discussion to use `discardedNodes` but opted against it and do a full flush there as well: neos#5175 (comment)

This change allows us to get rid of the `discardedNodes` property (with dimensions) in the `WorkspaceWasPartiallyDiscarded` event.

Neos.Neos/Classes/AssetUsage/CatchUpHook/AssetUsageCatchUpHook.php

@@ -15,7 +15,6 @@
 use Neos\ContentRepository\Core\Feature\NodeVariation\Event\NodeGeneralizationVariantWasCreated;
 use Neos\ContentRepository\Core\Feature\NodeVariation\Event\NodePeerVariantWasCreated;
 use Neos\ContentRepository\Core\Feature\NodeVariation\Event\NodeSpecializationVariantWasCreated;
-use Neos\ContentRepository\Core\Feature\WorkspacePublication\Dto\NodeIdsToPublishOrDiscard;
 use Neos\ContentRepository\Core\Feature\WorkspacePublication\Event\WorkspaceWasDiscarded;
 use Neos\ContentRepository\Core\Feature\WorkspacePublication\Event\WorkspaceWasPartiallyDiscarded;
 use Neos\ContentRepository\Core\Projection\CatchUpHookInterface;
@@ -59,7 +58,6 @@ public function onBeforeEvent(EventInterface $eventInstance, EventEnvelope $even
 
         match ($eventInstance::class) {
             NodeAggregateWasRemoved::class => $this->removeNodes($eventInstance->getWorkspaceName(), $eventInstance->nodeAggregateId, $eventInstance->affectedCoveredDimensionSpacePoints),
-            WorkspaceWasPartiallyDiscarded::class => $this->discardNodes($eventInstance->getWorkspaceName(), $eventInstance->discardedNodes),
             default => null
         };
     }
@@ -81,7 +79,8 @@ public function onAfterEvent(EventInterface $eventInstance, EventEnvelope $event
             NodeGeneralizationVariantWasCreated::class => $this->updateNode($eventInstance->getWorkspaceName(), $eventInstance->nodeAggregateId, $eventInstance->generalizationOrigin->toDimensionSpacePoint()),
             NodeSpecializationVariantWasCreated::class => $this->updateNode($eventInstance->getWorkspaceName(), $eventInstance->nodeAggregateId, $eventInstance->specializationOrigin->toDimensionSpacePoint()),
             NodePropertiesWereSet::class => $this->updateNode($eventInstance->getWorkspaceName(), $eventInstance->nodeAggregateId, $eventInstance->originDimensionSpacePoint->toDimensionSpacePoint()),
-            WorkspaceWasDiscarded::class => $this->discardWorkspace($eventInstance->getWorkspaceName()),
+            WorkspaceWasDiscarded::class,
+            WorkspaceWasPartiallyDiscarded::class => $this->discardWorkspace($eventInstance->getWorkspaceName()),
             DimensionSpacePointWasMoved::class => $this->updateDimensionSpacePoint($eventInstance->getWorkspaceName(), $eventInstance->source, $eventInstance->target),
             default => null
         };
@@ -144,22 +143,6 @@ private function discardWorkspace(WorkspaceName $workspaceName): void
         $this->assetUsageIndexingService->removeIndexForWorkspace($this->contentRepositoryId, $workspaceName);
     }
 
-    private function discardNodes(WorkspaceName $workspaceName, NodeIdsToPublishOrDiscard $nodeIds): void
-    {
-        foreach ($nodeIds as $nodeId) {
-            if (!$nodeId->dimensionSpacePoint) {
-                // NodeAggregateTypeWasChanged and NodeAggregateNameWasChanged don't impact asset usage
-                continue;
-            }
-            $this->assetUsageIndexingService->removeIndexForWorkspaceNameNodeAggregateIdAndDimensionSpacePoint(
-                $this->contentRepositoryId,
-                $workspaceName,
-                $nodeId->nodeAggregateId,
-                $nodeId->dimensionSpacePoint
-            );
-        }
-    }
-
     private function updateDimensionSpacePoint(WorkspaceName $workspaceName, DimensionSpacePoint $source, DimensionSpacePoint $target): void
     {
         $this->assetUsageIndexingService->updateDimensionSpacePointInIndex($this->contentRepositoryId, $workspaceName, $source, $target);