diff --git a/lib/rubygems/test_case.rb b/lib/rubygems/test_case.rb
index d57f382503..708d1d4606 100644
--- a/lib/rubygems/test_case.rb
+++ b/lib/rubygems/test_case.rb
@@ -307,7 +307,6 @@ class Gem::TestCase < (defined?(Minitest::Test) ? Minitest::Test : MiniTest::Uni
 
     Dir.chdir @tempdir
 
-    @orig_ENV_HOME = ENV['HOME']
     ENV['HOME'] = @userhome
     Gem.instance_variable_set :@user_home, nil
     Gem.instance_variable_set :@gemdeps, nil
@@ -318,7 +317,6 @@ class Gem::TestCase < (defined?(Minitest::Test) ? Minitest::Test : MiniTest::Uni
     FileUtils.mkdir_p @gemhome
     FileUtils.mkdir_p @userhome
 
-    @orig_gem_private_key_passphrase = ENV['GEM_PRIVATE_KEY_PASSPHRASE']
     ENV['GEM_PRIVATE_KEY_PASSPHRASE'] = PRIVATE_KEY_PASSPHRASE
 
     @default_dir = File.join @tempdir, 'default'