remove launch constraints

packages/@aws-cdk/aws-lambda/test/integ.lambda.docker.ts

@@ -6,7 +6,7 @@ import { CfnFunction, DockerImageCode, DockerImageFunction } from '../lib';
 class TestStack extends Stack {
   constructor(scope: App, id: string) {
     super(scope, id, {
-      env: { region: 'sa-east-1' }, // the feature is available only in sa-east-1 during private beta. Remove after launch.
+      env: { region: 'eu-west-1' }, // remove after launch
     });
 
     new DockerImageFunction(this, 'MyLambda', {
@@ -15,18 +15,7 @@ class TestStack extends Stack {
   }
 }
 
-class PrivateResourceAspect implements IAspect {
-  visit(construct: IConstruct): void {
-    if (construct instanceof CfnFunction) {
-      (construct as any).cfnResourceType = 'AWSLambdaBeta::Lambda::Function';
-    }
-  }
-}
-
 const app = new App();
 const stack = new TestStack(app, 'lambda-ecr-docker');
 
-// the feature is available as an CFN private resource during private beta. Remove after launch.
-Aspects.of(stack).add(new PrivateResourceAspect());
-
 app.synth();