Remove Ruby < 1.8.7 specific extensions.

lib/core_ext.rb

@@ -1,26 +1,3 @@
-unless :to_proc.respond_to?(:to_proc)
-  class Symbol
-    # Turns the symbol into a simple proc, 
-    # which is especially useful for enumerations.
-    #
-    # Examples
-    #
-    #   # The same as people.collect { |p| p.name }
-    #   people.collect(&:name)
-    #
-    #   # The same as people.select { |p| p.manager? }.collect { |p| p.salary }
-    #   people.select(&:manager?).collect(&:salary)
-    #
-    # Extracted from ActiveSupport.
-    #
-    # Returns a Proc which incapsulates the method business logic.
-    def to_proc
-      Proc.new { |*args| args.shift.__send__(self, *args) }
-    end
-  end
-end
-
-
 require 'date'
 
 class DateTime

test/whois/core_ext_test.rb

@@ -1,15 +1,5 @@
 require 'test_helper'
 
-class SymbolTests < Test::Unit::TestCase
-
-  def test_to_proc
-    assert_equal %w(one two three), [:one, :two, :three].map(&:to_s)
-    assert_equal(%w(one two three), { 1 => "one", 2 => "two", 3 => "three" }.sort_by(&:first).map(&:last))
-  end
-
-end
-
-
 class DateTimeExtCalculationsTest < Test::Unit::TestCase
 
   def test_to_time