update!: Remove update node internals composable

* It's practically useless as vue doesn't need the trigger to catch a re-render
* Remove unused types

Signed-off-by: Braks <78412429+bcakmakoglu@users.noreply.github.com>

examples/UpdateNodeInternals/UpdateNodeInternalsExample.vue

@@ -69,15 +69,12 @@ const onLoad = (instance: FlowInstance) => {
   instance.fitView()
   flowInstance.value = instance
 }
-
-const updateNodeInternals = () => flowInstance.value?.updateNodeInternals('1')
 </script>
 <template>
   <VueFlow :elements="elements" :node-types="nodeTypes" @connect="onConnect" @pane-click="onPaneClick" @load="onLoad">
     <div :style="buttonWrapperStyles">
       <button @click="toggleHandleCount">toggle handle count</button>
       <button @click="toggleHandlePosition">toggle handle position</button>
-      <button @click="updateNodeInternals">update node internals</button>
     </div>
   </VueFlow>
 </template>