chore(ci): remove unused dependabot scan path [skip ci] (#33847)

### Issue # (if applicable)

Closes #<issue number here>.

### Reason for this change



`/packages/@aws-cdk/lambda-layer-awscli` has been moved to https://github.com/cdklabs/awscdk-asset-awscli/blob/awscli-v1/main/.github/dependabot.yml

`init-templates` have been moved to https://github.com/aws/aws-cdk-cli/blob/main/.github/dependabot.yml

### Description of changes


remove unused dependabot scan path
### Describe any new or updated permissions being added




### Description of how you validated changes



### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

----

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

Author: 5d

.github/dependabot.yml

@@ -11,33 +11,3 @@ updates:
     labels:
       - "auto-approve"
     open-pull-requests-limit: 5
-  - package-ecosystem: "pip"
-    directory: "/packages/@aws-cdk/lambda-layer-awscli"
-    schedule:
-      interval: "weekly"
-    labels:
-      - "auto-approve"
-    open-pull-requests-limit: 5
-
-  # Non-TypeScript init template dependency updates
-  - package-ecosystem: "pip"
-    directory: "/packages/aws-cdk/lib/init-templates"
-    schedule:
-      interval: "weekly"
-    labels:
-      - "auto-approve"
-    open-pull-requests-limit: 5
-  - package-ecosystem: "maven"
-    directory: "/packages/aws-cdk/lib/init-templates"
-    schedule:
-      interval: "weekly"
-    labels:
-      - "auto-approve"
-    open-pull-requests-limit: 5
-  - package-ecosystem: "nuget"
-    directory: "/packages/aws-cdk/lib/init-templates"
-    schedule:
-      interval: "weekly"
-    labels:
-      - "auto-approve"
-    open-pull-requests-limit: 5