chore: remove unused code

src/invidious/database/videos.cr

@@ -4,22 +4,11 @@ module Invidious::Database::Videos
   extend self
 
   def insert(video : Video)
-    request = <<-SQL
-      INSERT INTO videos
-      VALUES ($1, $2, $3)
-      ON CONFLICT (id) DO NOTHING
-    SQL
-
     REDIS_DB.set(video.id, video.info.to_json, ex: 14400)
     REDIS_DB.set(video.id + ":time", video.updated, ex: 14400)
   end
 
   def delete(id)
-    request = <<-SQL
-      DELETE FROM videos *
-      WHERE id = $1
-    SQL
-
     REDIS_DB.del(id)
     REDIS_DB.del(id + ":time")
   end
@@ -44,11 +33,6 @@ module Invidious::Database::Videos
   end
 
   def select(id : String) : Video?
-    request = <<-SQL
-      SELECT * FROM videos
-      WHERE id = $1
-    SQL
-
     if ((info = REDIS_DB.get(id)) && (time = REDIS_DB.get(id + ":time")))
       return Video.new({
         id:      id,

src/invidious/helpers/utils.cr

@@ -384,20 +384,6 @@ def parse_link_endpoint(endpoint : JSON::Any, text : String, video_id : String)
   return text
 end
 
-# Generates a list of external videoplayback proxies for 
-# CSP
-def gen_videoplayback_proxy_list
-  if !CONFIG.external_videoplayback_proxy.empty?
-    external_videoplayback_proxy = ""
-    CONFIG.external_videoplayback_proxy.each do |proxy|
-      external_videoplayback_proxy += " #{proxy}"
-    end
-  else
-    external_videoplayback_proxy = ""
-  end
-  return external_videoplayback_proxy
-end
-
 def encrypt_ecb_without_salt(data, key)
   cipher = OpenSSL::Cipher.new("aes-128-ecb")
   cipher.encrypt