fix(lint) don't check for Flow types on files without the annotation

react/.eslintrc.js

@@ -11,6 +11,9 @@ module.exports = {
         'react/jsx-indent-props': 0
     },
     'settings': {
+        'flowtype': {
+            'onlyFilesWithFlowAnnotation': true
+        },
         'react': {
             'version': 'detect'
         }

react/features/shared-video/components/web/YoutubeVideoManager.js

@@ -15,7 +15,7 @@ import AbstractVideoManager, {
  *
  * @returns {void}
  */
-class YoutubeVideoManager extends AbstractVideoManager<Props> {
+class YoutubeVideoManager extends AbstractVideoManager {
     /**
      * Initializes a new YoutubeVideoManager instance.
      *