brew style --fix

Library/Homebrew/cask/artifact_set.rb

@@ -1,8 +1,6 @@
 # typed: true
 # frozen_string_literal: true
 
-require "set"
-
 module Cask
   # Sorted set containing all cask artifacts.
   class ArtifactSet < ::Set

Library/Homebrew/cleanup.rb

@@ -6,7 +6,6 @@ require "utils/bottles"
 require "attrable"
 require "formula"
 require "cask/cask_loader"
-require "set"
 
 module Homebrew
   # Helper class for cleaning up the Homebrew cache.

Library/Homebrew/cli/parser.rb

@@ -6,7 +6,6 @@ require "env_config"
 require "cask/config"
 require "cli/args"
 require "optparse"
-require "set"
 require "utils/tty"
 
 module Homebrew

Library/Homebrew/description_cache_store.rb

@@ -1,7 +1,6 @@
 # typed: true
 # frozen_string_literal: true
 
-require "set"
 require "cache_store"
 
 #

Library/Homebrew/env_config.rb

@@ -1,8 +1,6 @@
 # typed: true
 # frozen_string_literal: true
 
-require "set"
-
 module Homebrew
   # Helper module for querying Homebrew-specific environment variables.
   #

Library/Homebrew/global.rb

@@ -8,7 +8,6 @@ require "fileutils"
 require "json"
 require "json/add/exception"
 require "forwardable"
-require "set"
 
 require "extend/array"
 require "extend/blank"

Library/Homebrew/linkage_cache_store.rb

@@ -1,7 +1,6 @@
 # typed: true
 # frozen_string_literal: true
 
-require "set"
 require "cache_store"
 
 #