Fix missing .id to retrieve first playlist video ID

This was missed in the review of PR 5196

src/invidious/routes/embed.cr

@@ -20,7 +20,7 @@ module Invidious::Routes::Embed
         return error_template(500, ex)
       end
 
-      url = "/embed/#{first_playlist_video}?#{env.params.query}"
+      url = "/embed/#{first_playlist_video.id}?#{env.params.query}"
 
       if env.params.query.size > 0
         url += "?#{env.params.query}"

src/invidious/yt_backend/youtube_api.cr

@@ -42,7 +42,6 @@ module YoutubeAPI
 
     TvHtml5
     TvHtml5ScreenEmbed
-    TvSimply
   end
 
   # List of hard-coded values used by the different clients
@@ -179,11 +178,6 @@ module YoutubeAPI
       version:    "2.0",
       screen:     "EMBED",
     },
-    ClientType::TvSimply => {
-      name:       "TVHTML5_SIMPLY",
-      name_proto: "74",
-      version:    "1.0",
-    },
   }
 
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