Jobs: Remove the signature function update job

src/invidious.cr

@@ -164,10 +164,6 @@ if CONFIG.feed_threads > 0
 end
 
 DECRYPT_FUNCTION = DecryptFunction.new(CONFIG.decrypt_polling)
-if CONFIG.decrypt_polling
-  Invidious::Jobs.register Invidious::Jobs::UpdateDecryptFunctionJob.new
-end
-
 if CONFIG.statistics_enabled
   Invidious::Jobs.register Invidious::Jobs::StatisticsRefreshJob.new(PG_DB, SOFTWARE)
 end

src/invidious/config.cr

@@ -74,8 +74,6 @@ class Config
   # Database configuration using 12-Factor "Database URL" syntax
   @[YAML::Field(converter: Preferences::URIConverter)]
   property database_url : URI = URI.parse("")
-  # Use polling to keep decryption function up to date
-  property decrypt_polling : Bool = false
   # Used for crawling channels: threads should check all videos uploaded by a channel
   property full_refresh : Bool = false
 

src/invidious/jobs/update_decrypt_function_job.cr

@@ -1,14 +0,0 @@
-class Invidious::Jobs::UpdateDecryptFunctionJob < Invidious::Jobs::BaseJob
-  def begin
-    loop do
-      begin
-        DECRYPT_FUNCTION.update_decrypt_function
-      rescue ex
-        LOGGER.error("UpdateDecryptFunctionJob : #{ex.message}")
-      ensure
-        sleep 1.minute
-        Fiber.yield
-      end
-    end
-  end
-end