THRIFT-1760 [Ruby] Remove unnecessary native protocol code
Patch: Nathan Beyer
diff --git a/lib/rb/ext/constants.h b/lib/rb/ext/constants.h
index 3bfac88..76947e5 100644
--- a/lib/rb/ext/constants.h
+++ b/lib/rb/ext/constants.h
@@ -48,7 +48,6 @@
 extern ID write_list_end_method_id;
 extern ID write_set_begin_method_id;
 extern ID write_set_end_method_id;
-extern ID size_method_id;
 extern ID read_bool_method_id;
 extern ID read_byte_method_id;
 extern ID read_i16_method_id;
@@ -67,15 +66,12 @@
 extern ID read_field_begin_method_id;
 extern ID read_field_end_method_id;
 extern ID keys_method_id;
-extern ID entries_method_id; 
-extern ID name_method_id; 
-extern ID sort_method_id;
+extern ID entries_method_id;
 extern ID write_field_stop_method_id;
 extern ID skip_method_id;
 extern ID write_method_id;
 extern ID read_all_method_id;
 extern ID read_into_buffer_method_id;
-extern ID native_qmark_method_id;
 extern ID force_binary_encoding_id;
 extern ID convert_to_utf8_byte_buffer_id;
 extern ID convert_to_string_id;