src/vs/workbench/browser/parts/editor/editorActions.ts/CloseAllEditorGroupsAction/doCloseAll
class CloseAllEditorGroupsAction:	protected override async doCloseAll(): Promise<void> {
		await super.doCloseAll();

		for (const groupToClose of this.groupsToClose) {
			this.editorGroupService.removeGroup(groupToClose);
		}
	}