refactor(util/markdown): remove test scenario (#23272)

lib/util/markdown.spec.ts

@@ -15,7 +15,6 @@ describe('util/markdown', () => {
       *   Issue or PR (fork): foo#1
       *   Issue or PR (project): remarkjs/remark#1
       *   Mention: @wooorm
-      *   Changelog heading with link: [v2.23.1](https://github.com/bootstrap-vue/bootstrap-vue/blob/HEAD/CHANGELOG.md#2231-2022-10-26)
     `;
 
     const after =
@@ -30,7 +29,6 @@ describe('util/markdown', () => {
         -   Issue or PR (fork): [foo#1](https://github.com/foo/repo/issues/1)
         -   Issue or PR (project): [remarkjs/remark#1](https://github.com/remarkjs/remark/issues/1)
         -   Mention: [@wooorm](https://github.com/wooorm)
-        -   Changelog heading with link: [v2.23.1](https://github.com/bootstrap-vue/bootstrap-vue/blob/HEAD/CHANGELOG.md#2231-2022-10-26)
     ` + '\n';
 
     it('works', async () => {