Speed: Remove some optimizations that weren't optimizing (#6209)

## Summary

Simplify the TransformPane.

## Changes

- **What**: Remove the settling and culling composables. Gets rid of a
frequent event emission and some event handling addition/removals.

## Review Focus

In testing with a huge workflow in Vue mode, it was a lot faster without
these than with.
Can you check to see if you experience the same benefits?

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6209-Speed-Remove-some-optimizations-that-weren-t-optimizing-2946d73d3650815197a4df3c58a61575)
by [Unito](https://www.unito.io)

---------

Co-authored-by: github-actions <github-actions@github.com>

src/components/graph/GraphCanvas.vue

@@ -57,7 +57,6 @@
   <TransformPane
     v-if="shouldRenderVueNodes && comfyApp.canvas && comfyAppReady"
     :canvas="comfyApp.canvas"
-    @transform-update="handleTransformUpdate"
     @wheel.capture="canvasInteractions.forwardEventToCanvas"
   >
     <!-- Vue nodes rendered based on graph nodes -->
@@ -118,7 +117,6 @@ import TopbarBadges from '@/components/topbar/TopbarBadges.vue'
 import WorkflowTabs from '@/components/topbar/WorkflowTabs.vue'
 import { useChainCallback } from '@/composables/functional/useChainCallback'
 import type { VueNodeData } from '@/composables/graph/useGraphNodeManager'
-import { useViewportCulling } from '@/composables/graph/useViewportCulling'
 import { useVueNodeLifecycle } from '@/composables/graph/useVueNodeLifecycle'
 import { useNodeBadge } from '@/composables/node/useNodeBadge'
 import { useCanvasDrop } from '@/composables/useCanvasDrop'
@@ -202,7 +200,6 @@ const { shouldRenderVueNodes } = useVueFeatureFlags()
 
 // Vue node system
 const vueNodeLifecycle = useVueNodeLifecycle()
-const { handleTransformUpdate } = useViewportCulling()
 
 const handleVueNodeLifecycleReset = async () => {
   if (shouldRenderVueNodes.value) {