Skip spec that requires network access.

Index: spec/ruby/library/socket/socket/connect_spec.rb
--- spec/ruby/library/socket/socket/connect_spec.rb.orig
+++ spec/ruby/library/socket/socket/connect_spec.rb
@@ -73,6 +73,6 @@ describe 'Socket#connect' do
       }.should raise_error(IO::TimeoutError)
     ensure
       client.close
-    end
+    end if false
   end
 end
