Removed math mode from irb.

  mathn is deprecated from Ruby 2.2.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58415 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 0 insertions, 3 deletions

diff --git a/lib/irb/extend-command.rb b/lib/irb/extend-command.rb
index 6f15e6403a..064f21ba52 100644
--- a/lib/irb/extend-command.rb
+++ b/lib/irb/extend-command.rb
@@ -214,7 +214,6 @@ module IRB # :nodoc:
     @EXTEND_COMMANDS = [
       [:eval_history=, "irb/ext/history.rb"],
       [:use_tracer=, "irb/ext/tracer.rb"],
-      [:math_mode=, "irb/ext/math-mode.rb"],
       [:use_loader=, "irb/ext/use-loader.rb"],
       [:save_history=, "irb/ext/save-history.rb"],
     ]
@@ -223,7 +222,6 @@ module IRB # :nodoc:
     #
     # Context#eval_history=::   +irb/ext/history.rb+
     # Context#use_tracer=::     +irb/ext/tracer.rb+
-    # Context#math_mode=::      +irb/ext/math-mode.rb+
     # Context#use_loader=::     +irb/ext/use-loader.rb+
     # Context#save_history=::   +irb/ext/save-history.rb+
     def self.install_extend_commands
@@ -306,4 +304,3 @@ module IRB # :nodoc:
     end
   end
 end
-