src/vs/workbench/contrib/welcome/gettingStarted/browser/gettingStartedService.ts/GettingStartedService/unregisterExtensionNewContributions
class GettingStartedService:	private unregisterExtensionNewContributions(extension: IExtensionDescription) {
		if (!(extension.contributes?.startEntries?.length)) {
			return;
		}

		this.newMenuItems = this.newMenuItems.filter(entry => entry.sourceExtensionId !== extension.identifier.value);
	}