Remove unused Ruby constants (#39905)

app/controllers/api/fasp/base_controller.rb

@@ -4,7 +4,6 @@ class Api::Fasp::BaseController < ApplicationController
   class Error < ::StandardError; end
 
   DIGEST_PATTERN = /sha-256=:(.*?):/
-  KEYID_PATTERN = /keyid="(.*?)"/
 
   attr_reader :current_provider
 

app/controllers/concerns/signature_verification.rb

@@ -7,8 +7,6 @@ module SignatureVerification
 
   include DomainControlHelper
 
-  EXPIRATION_WINDOW_LIMIT = 12.hours
-  CLOCK_SKEW_MARGIN       = 1.hour
   STOPLIGHT_COOL_OFF_TIME = 5.minutes.seconds
   STOPLIGHT_THRESHOLD = 1
 

app/lib/activitypub/linked_data_signature.rb

@@ -4,7 +4,6 @@ class ActivityPub::LinkedDataSignature
   include JsonLdHelper
 
   CONTEXT = 'https://w3id.org/identity/v1'
-  SIGNATURE_CONTEXT = 'https://w3id.org/security/v1'
 
   def initialize(json)
     @json = json.with_indifferent_access

app/lib/vacuum/preview_cards_vacuum.rb

@@ -1,8 +1,6 @@
 # frozen_string_literal: true
 
 class Vacuum::PreviewCardsVacuum
-  TTL = 1.day.freeze
-
   def initialize(retention_period)
     @retention_period = retention_period
   end

app/models/annual_report/statuses_per_account_count.rb

@@ -1,15 +0,0 @@
-# frozen_string_literal: true
-
-# == Schema Information
-#
-# Table name: annual_report_statuses_per_account_counts
-#
-#  id             :bigint(8)        not null, primary key
-#  statuses_count :bigint(8)        not null
-#  year           :integer          not null
-#  account_id     :bigint(8)        not null
-#
-
-class AnnualReport::StatusesPerAccountCount < ApplicationRecord
-  # This table facilitates percentile calculations
-end

app/models/concerns/account/header.rb

@@ -7,7 +7,6 @@ module Account::Header
   HEADER_IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif', 'image/webp'].freeze
   HEADER_LIMIT = 8.megabytes
   HEADER_DIMENSIONS = [1500, 500].freeze
-  HEADER_GEOMETRY = [HEADER_DIMENSIONS.first, HEADER_DIMENSIONS.last].join('x')
   HEADER_MAX_PIXELS = HEADER_DIMENSIONS.first * HEADER_DIMENSIONS.last
 
   class_methods do

lib/paperclip/color_extractor.rb

@@ -6,7 +6,6 @@ module Paperclip
   class ColorExtractor < Paperclip::Processor
     MIN_CONTRAST        = 3.0
     ACCENT_MIN_CONTRAST = 2.0
-    FREQUENCY_THRESHOLD = 0.01
     BINS = 10
 
     def make