Ignore rexml examples on ruby/spec

Merged: https://github.com/ruby/ruby/pull/2832

spec/ruby/library/rexml/attribute/remove_spec.rb

@@ -1,20 +1,23 @@
 require_relative '../../../spec_helper'
-require 'rexml/document'
 
-describe "REXML::Attribute#remove" do
-  before :each do
-    @e = REXML::Element.new "Root"
-    @attr = REXML::Attribute.new("foo", "bar")
-  end
+ruby_version_is ''...'2.8' do
+  require 'rexml/document'
 
-  it "deletes this Attribute from parent" do
-    @e.add_attribute(@attr)
-    @e.attributes["foo"].should_not == nil
-    @attr.remove
-    @e.attributes["foo"].should == nil
-  end
+  describe "REXML::Attribute#remove" do
+    before :each do
+      @e = REXML::Element.new "Root"
+      @attr = REXML::Attribute.new("foo", "bar")
+    end
 
-  it "does not anything if element has no parent" do
-    -> {@attr.remove}.should_not raise_error(Exception)
+    it "deletes this Attribute from parent" do
+      @e.add_attribute(@attr)
+      @e.attributes["foo"].should_not == nil
+      @attr.remove
+      @e.attributes["foo"].should == nil
+    end
+
+    it "does not anything if element has no parent" do
+      -> {@attr.remove}.should_not raise_error(Exception)
+    end
   end
 end