diff --git a/src/agg/process_line_pattern_symbolizer.cpp b/src/agg/process_line_pattern_symbolizer.cpp
index b45a7b39a..0aec91a58 100644
--- a/src/agg/process_line_pattern_symbolizer.cpp
+++ b/src/agg/process_line_pattern_symbolizer.cpp
@@ -122,10 +122,6 @@ void  agg_renderer<T0,T1>::process(line_pattern_symbolizer const& sym,
         clip_box.pad(padding);
     }
 
-    //using conv_types = boost::mpl::vector<clip_line_tag, transform_tag,
-    //                                      affine_transform_tag,
-    //                                      simplify_tag,smooth_tag,
-    //                                      offset_transform_tag>;
     vertex_converter<rasterizer_type, clip_line_tag, transform_tag,
                      affine_transform_tag,
                      simplify_tag,smooth_tag,
diff --git a/src/agg/process_line_symbolizer.cpp b/src/agg/process_line_symbolizer.cpp
index 844eb5ce5..1295e9fab 100644
--- a/src/agg/process_line_symbolizer.cpp
+++ b/src/agg/process_line_symbolizer.cpp
@@ -116,11 +116,6 @@ void agg_renderer<T0,T1>::process(line_symbolizer const& sym,
     using blender_type = agg::comp_op_adaptor_rgba_pre<color_type, order_type>; // comp blender
     using pixfmt_comp_type = agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer>;
     using renderer_base = agg::renderer_base<pixfmt_comp_type>;
-    //using conv_types = boost::mpl::vector<clip_line_tag, transform_tag,
-    //                                      affine_transform_tag,
-    //                                      simplify_tag, smooth_tag,
-    //                                      offset_transform_tag,
-    //                                      dash_tag, stroke_tag>;
 
     pixfmt_comp_type pixf(buf);
     pixf.comp_op(static_cast<agg::comp_op_e>(get<composite_mode_e>(sym, keys::comp_op, feature, common_.vars_, src_over)));
diff --git a/src/agg/process_polygon_pattern_symbolizer.cpp b/src/agg/process_polygon_pattern_symbolizer.cpp
index 4ca7045bc..c607dfa24 100644
--- a/src/agg/process_polygon_pattern_symbolizer.cpp
+++ b/src/agg/process_polygon_pattern_symbolizer.cpp
@@ -158,7 +158,6 @@ void agg_renderer<T0,T1>::process(polygon_pattern_symbolizer const& sym,
     auto transform = get_optional<transform_type>(sym, keys::geometry_transform);
     if (transform) evaluate_transform(tr, feature, common_.vars_, *transform, common_.scale_factor_);
 
-    //using conv_types = boost::mpl::vector<clip_poly_tag,transform_tag,affine_transform_tag,simplify_tag,smooth_tag>;
     vertex_converter<rasterizer, clip_poly_tag,transform_tag,affine_transform_tag,simplify_tag,smooth_tag>
         converter(clip_box,*ras_ptr,sym,common_.t_,prj_trans,tr,feature,common_.vars_,common_.scale_factor_);
 
diff --git a/src/agg/process_polygon_symbolizer.cpp b/src/agg/process_polygon_symbolizer.cpp
index 8f52db603..5a5fb492e 100644
--- a/src/agg/process_polygon_symbolizer.cpp
+++ b/src/agg/process_polygon_symbolizer.cpp
@@ -49,7 +49,6 @@ void agg_renderer<T0,T1>::process(polygon_symbolizer const& sym,
                               mapnik::feature_impl & feature,
                               proj_transform const& prj_trans)
 {
-    //using conv_types = boost::mpl::vector<clip_poly_tag,transform_tag,affine_transform_tag,simplify_tag,smooth_tag>;
     using vertex_converter_type = vertex_converter<rasterizer,clip_poly_tag,transform_tag,affine_transform_tag,simplify_tag,smooth_tag>;
 
     ras_ptr->reset();