fix(lambda): automatic currentVersion conflicts with explicit Version resource (#23636)

In #23225, we automatically created a `currentVersion` Version object if the `currentVersionOptions` property was specified.

However, this breaks the case where a user both:

* Specifies `currentVersionOptions`
* Never calls `currentVersion` but instead creates a `Version` object directly.

In that case, 2 `Version` resources are created, but the second one fails because Lambda will not allow creating a new Version if nothing changed since the last Version.

Reverting that change.

----

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### Adding new Construct Runtime Dependencies:

* [ ] This PR adds new construct runtime dependencies following the process described [here](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md/#adding-construct-runtime-dependencies)

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*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: comcalvi

packages/@aws-cdk/aws-lambda/README.md

@@ -283,19 +283,6 @@ const version = new lambda.Version(this, 'MyVersion', {
 });
 ```
 
-Or setting the `currentVersionOptions` when creating a new lambda
-
-```ts
-new lambda.Function(this, 'MyVersionedLambda', {
-  runtime: lambda.Runtime.NODEJS_18_X,
-  handler: 'index.handler',
-  code: lambda.Code.fromAsset(path.join(__dirname, 'lambda-handler')),
-  currentVersionOptions: {
-    provisionedConcurrentExecutions: 3,
-  },
-});
-```
-
 The major caveat to know here is that a function version must always point to a
 specific 'version' of the function. When the function is modified, the version
 will continue to point to the 'then version' of the function.

packages/@aws-cdk/aws-lambda/lib/function.ts

@@ -870,9 +870,6 @@ export class Function extends FunctionBase {
     }
 
     this.currentVersionOptions = props.currentVersionOptions;
-    if (props.currentVersionOptions) {
-      this.currentVersion;
-    }
 
     if (props.filesystem) {
       if (!props.vpc) {

packages/@aws-cdk/aws-lambda/test/function.test.ts

@@ -3047,31 +3047,6 @@ describe('function', () => {
     });
   });
 
-  test('Generates a version when currentVersionOptions is set', () => {
-    const stack = new cdk.Stack();
-
-    new lambda.Function(stack, 'MyLambda', {
-      code: new lambda.InlineCode('foo'),
-      handler: 'index.handler',
-      runtime: lambda.Runtime.NODEJS_14_X,
-      currentVersionOptions: {
-        provisionedConcurrentExecutions: 3,
-      },
-    });
-
-    Template.fromStack(stack).hasResourceProperties('AWS::Lambda::Version', {
-      ProvisionedConcurrencyConfig: {
-        ProvisionedConcurrentExecutions: 3,
-      },
-    });
-
-    Template.fromStack(stack).hasResourceProperties('AWS::Lambda::Function', {
-      Code: { ZipFile: 'foo' },
-      Handler: 'index.handler',
-      Runtime: 'nodejs14.x',
-    });
-  });
-
   test('adds ADOT instrumentation to a ZIP Lambda function', () => {
     // GIVEN
     const app = new cdk.App();