Ameba: Fix Lint/UselessAssign (#4795)

Related to issue 2231

spec/invidious/search/iv_filters_spec.cr

@@ -301,7 +301,6 @@ Spectator.describe Invidious::Search::Filters do
 
     it "Encodes features filter (single)" do
       Invidious::Search::Filters::Features.each do |value|
-        string = described_class.format_features(value)
         filters = described_class.new(features: value)
 
         expect("#{filters.to_iv_params}")

src/invidious/channels/channels.cr

@@ -232,7 +232,7 @@ def fetch_channel(ucid, pull_all_videos : Bool)
       id:                 video_id,
       title:              title,
       published:          published,
-      updated:            Time.utc,
+      updated:            updated,
       ucid:               ucid,
       author:             author,
       length_seconds:     length_seconds,

src/invidious/frontend/misc.cr

@@ -6,9 +6,9 @@ module Invidious::Frontend::Misc
 
     if prefs.automatic_instance_redirect
       current_page = env.get?("current_page").as(String)
-      redirect_url = "/redirect?referer=#{current_page}"
+      return "/redirect?referer=#{current_page}"
     else
-      redirect_url = "https://redirect.invidious.io#{env.request.resource}"
+      return "https://redirect.invidious.io#{env.request.resource}"
     end
   end
 end

src/invidious/helpers/handlers.cr

@@ -97,7 +97,7 @@ class AuthHandler < Kemal::Handler
       if token = env.request.headers["Authorization"]?
         token = JSON.parse(URI.decode_www_form(token.lchop("Bearer ")))
         session = URI.decode_www_form(token["session"].as_s)
-        scopes, expire, signature = validate_request(token, session, env.request, HMAC_KEY, nil)
+        scopes, _, _ = validate_request(token, session, env.request, HMAC_KEY, nil)
 
         if email = Invidious::Database::SessionIDs.select_email(session)
           user = Invidious::Database::Users.select!(email: email)

src/invidious/user/imports.cr

@@ -124,7 +124,7 @@ struct Invidious::User
           playlist = create_playlist(title, privacy, user)
           Invidious::Database::Playlists.update_description(playlist.id, description)
 
-          videos = item["videos"]?.try &.as_a?.try &.each_with_index do |video_id, idx|
+          item["videos"]?.try &.as_a?.try &.each_with_index do |video_id, idx|
             if idx > CONFIG.playlist_length_limit
               raise InfoException.new("Playlist cannot have more than #{CONFIG.playlist_length_limit} videos")
             end

src/invidious/videos.cr

@@ -394,10 +394,6 @@ end
 def fetch_video(id, region)
   info = extract_video_info(video_id: id)
 
-  allowed_regions = info
-    .dig?("microformat", "playerMicroformatRenderer", "availableCountries")
-    .try &.as_a.map &.as_s || [] of String
-
   if reason = info["reason"]?
     if reason == "Video unavailable"
       raise NotFoundException.new(reason.as_s || "")

src/invidious/yt_backend/extractors.cr

@@ -109,7 +109,6 @@ private module Parsers
       end
 
       live_now = false
-      paid = false
       premium = false
 
       premiere_timestamp = item_contents.dig?("upcomingEventData", "startTime").try { |t| Time.unix(t.as_s.to_i64) }

src/invidious/yt_backend/extractors_utils.cr

@@ -83,5 +83,5 @@ end
 
 def extract_selected_tab(tabs)
   # Extract the selected tab from the array of tabs Youtube returns
-  return selected_target = tabs.as_a.select(&.["tabRenderer"]?.try &.["selected"]?.try &.as_bool)[0]["tabRenderer"]
+  return tabs.as_a.select(&.["tabRenderer"]?.try &.["selected"]?.try &.as_bool)[0]["tabRenderer"]
 end