Remove changelog for released changes

changelog_unreleased/typescript/19492.md

@@ -1,23 +0,0 @@
-#### Allow decorators to be used with declare on class fields (#19492 by @evoactivity)
-
-Extensively used within the Ember ecosystem, decorators with `declare` on class fields will ignore the babel parser error and allow Prettier to format the code without breaking it.
-
-<!-- prettier-ignore -->
-```ts
-// Input
-export default class ProjectStatusComponent extends Component<ProjectStatusSig> {
-  @service declare server: ServerService;
-}
-
-// Prettier stable
-// SyntaxError: Decorators can't be used with a declare field. (2:3)
-//  1 | export default class ProjectStatusComponent extends Component<ProjectStatusSig> {
-//> 2 |   @service declare server: ServerService;
-//    |   ^
-//  3 | }
-
-// Prettier main
-export default class ProjectStatusComponent extends Component<ProjectStatusSig> {
-  @service declare server: ServerService;
-}
-```