Remove test_mode in `lib/reline`.

1 files changed, 0 insertions, 7 deletions

diff --git a/lib/reline.rb b/lib/reline.rb
index aefcf7a5b5..6a53321a6d 100644
--- a/lib/reline.rb
+++ b/lib/reline.rb
@@ -179,13 +179,6 @@ module Reline
     @@line_editor&.delete_text(start, length)
   end
 
-  private_class_method def self.test_mode
-    remove_const('IOGate') if const_defined?('IOGate')
-    const_set('IOGate', Reline::GeneralIO)
-    @@config.instance_variable_set(:@test_mode, true)
-    @@config.reset
-  end
-
   def self.input=(val)
     raise TypeError unless val.respond_to?(:getc) or val.nil?
     if val.respond_to?(:getc)