techdocs: make empty state output optional

Signed-off-by: MT Lewis <mtlewis@users.noreply.github.com>

plugins/techdocs/api-report-alpha.md

@@ -230,7 +230,9 @@ const _default: FrontendPlugin<
       output: ConfigurableExtensionDataRef<
         React_2.JSX.Element,
         'core.reactElement',
-        {}
+        {
+          optional: true;
+        }
       >;
       inputs: {
         [x: string]: ExtensionInput<

plugins/techdocs/src/alpha.tsx

@@ -37,9 +37,7 @@ import {
   convertLegacyRouteRefs,
 } from '@backstage/core-compat-api';
 import { EntityContentBlueprint } from '@backstage/plugin-catalog-react/alpha';
-import { MissingAnnotationEmptyState } from '@backstage/plugin-catalog-react';
 import { SearchResultListItemBlueprint } from '@backstage/plugin-search-react/alpha';
-import { TECHDOCS_ANNOTATION } from '@backstage/plugin-techdocs-common';
 import {
   techdocsApiRef,
   techdocsStorageApiRef,
@@ -189,12 +187,8 @@ const TechDocsEntityContentEmptyState = createExtension({
   kind: 'empty-state',
   name: 'entity-content',
   attachTo: { id: 'entity-content:techdocs', input: 'emptyState' },
-  output: [coreExtensionData.reactElement],
-  factory: () => [
-    coreExtensionData.reactElement(
-      <MissingAnnotationEmptyState annotation={[TECHDOCS_ANNOTATION]} />,
-    ),
-  ],
+  output: [coreExtensionData.reactElement.optional()],
+  factory: () => [],
 });
 
 /** @alpha */