csharp: add legacy eo in mono blacklist

Summary: It is unnecessary to generate cs file of legacy class.

Test Plan: meson setup -Dbindings=mono,cxx

Reviewers: felipealmeida, lauromoura

Reviewed By: lauromoura

Subscribers: cedric, #reviewers, #committers, woohyun

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D9638

src/bindings/mono/meson.build

@@ -80,6 +80,8 @@ blacklisted_files = [
   'elm_multibuttonentry_part.eo',
   'elm_atspi_bridge.eo',
   'elm_atspi_app_object.eo',
+  'elm_interface_scrollable.eo',
+  'evas_canvas3d_types.eot',
 ]
 
 manual_inheritance_files = [