diff --git a/packages/@aws-cdk/custom-resource-handlers/lib/aws-synthetics-alpha/auto-delete-underlying-resources-handler/index.ts b/packages/@aws-cdk/custom-resource-handlers/lib/aws-synthetics-alpha/auto-delete-underlying-resources-handler/index.ts
deleted file mode 100644
index a26b47c7552ef..0000000000000
--- a/packages/@aws-cdk/custom-resource-handlers/lib/aws-synthetics-alpha/auto-delete-underlying-resources-handler/index.ts
+++ /dev/null
@@ -1,95 +0,0 @@
-/* eslint-disable no-console */
-/* eslint-disable import/no-extraneous-dependencies */
-import { LambdaClient, DeleteFunctionCommand } from '@aws-sdk/client-lambda';
-import { SyntheticsClient, GetCanaryCommand } from '@aws-sdk/client-synthetics';
-import { makeHandler } from '../../nodejs-entrypoint';
-
-const AUTO_DELETE_UNDERLYING_RESOURCES_TAG = 'aws-cdk:auto-delete-underlying-resources';
-
-const lambda = new LambdaClient({});
-const synthetics = new SyntheticsClient({});
-
-export const handler = makeHandler(autoDeleteHandler);
-
-export async function autoDeleteHandler(event: AWSLambda.CloudFormationCustomResourceEvent) {
-  switch (event.RequestType) {
-    case 'Create':
-      return { PhyscialResourceId: event.ResourceProperties?.CanaryName };
-    case 'Update':
-      const response = await onUpdate(event);
-      return { PhysicalResourceId: response.PhysicalResourceId };
-    case 'Delete':
-      return onDelete(event.ResourceProperties?.CanaryName);
-  }
-};
-
-async function onUpdate(event: AWSLambda.CloudFormationCustomResourceEvent) {
-  const updateEvent = event as AWSLambda.CloudFormationCustomResourceUpdateEvent;
-  const newCanaryName = updateEvent.ResourceProperties?.CanaryName;
-
-  // If the name of the canary has changed, CloudFormation will delete the canary
-  // and create a new one with the new name. Returning a PhysicalResourceId that
-  // differs from the event's PhysicalResourceId will trigger a `Delete` event
-  // for this custom resource. Here, if `newCanaryName` differs from `event.PhysicalResourceId`
-  // then this will trigger a `Delete` event.
-  return { PhysicalResourceId: newCanaryName };
-}
-
-async function onDelete(canaryName: string) {
-  console.log(`Deleting lambda function associated with ${canaryName}`);
-
-  if (!canaryName) {
-    throw new Error('No CanaryName was provided.');
-  }
-
-  try {
-    const response = (await synthetics.send(new GetCanaryCommand({
-      Name: canaryName,
-    })));
-
-    // Unlikely to happen but here so I don't have to write '?' everywhere
-    if (response.Canary === undefined || response.Canary.Id === undefined) {
-      // Canary does not exist. Exiting.
-      return;
-    } else if (response.Canary.EngineArn === undefined) {
-      // Lambda does not exist. Exiting.
-      return;
-    }
-
-    if (!isCanaryTaggedForDeletion(response.Canary.Tags)) {
-      console.log(`Canary does not have '${AUTO_DELETE_UNDERLYING_RESOURCES_TAG}' tag, skipping deletion.`);
-      return;
-    }
-
-    // EngineArn is a qualified function arn, but double check that is the case before removing qualifier
-    let qualifiedFunctionArnComponents = response.Canary.EngineArn.split(':');
-    if (!qualifiedFunctionArnComponents.at(-1)?.includes(response.Canary.Id)) {
-      qualifiedFunctionArnComponents.pop(); // remove qualifier
-    }
-
-    const unqualifedFunctionArn = qualifiedFunctionArnComponents.join(':');
-    console.log(`Deleting lambda ${unqualifedFunctionArn}`);
-
-    await lambda.send(new DeleteFunctionCommand({
-      FunctionName: unqualifedFunctionArn,
-    }));
-  } catch (error: any) {
-    if (error.name !== 'ResourceNotFoundException') {
-      throw error;
-    }
-    // Canary or Lambda doesn't exist. Exiting.
-  }
-}
-
-/**
- * The canary will only be tagged for deletion if it's being deleted in the same
- * deployment as this Custom Resource.
- *
- * If the Custom Resource is ever deleted before the repository, it must be because
- * `cleanup` has been switched to `Cleanup.NOTHING`, in which case the tag would have
- * been removed before we get to this Delete event.
- */
-function isCanaryTaggedForDeletion(tags?: Record<string, string>): boolean {
-  if (!tags) return false;
-  return Object.keys(tags).some((tag) => tag === AUTO_DELETE_UNDERLYING_RESOURCES_TAG && tags[tag] === 'true');
-}