Revert of Implement filter effects in Core Animation using CAFilters.

ui/gl/ca_renderer_layer_params.cc

Index: ui/gl/ca_renderer_layer_params.cc
diff --git a/ui/gl/ca_renderer_layer_params.cc b/ui/gl/ca_renderer_layer_params.cc
index 952e703afb47551a78cf5272ef8e5ad96c063124..8a4d745cf629675ec5695759e785062d5c26f1cc 100644
--- a/ui/gl/ca_renderer_layer_params.cc
+++ b/ui/gl/ca_renderer_layer_params.cc
@@ -33,11 +33,4 @@
     const CARendererLayerParams& other) = default;
 CARendererLayerParams::~CARendererLayerParams() = default;
 
-bool CARendererLayerParams::FilterEffect::operator==(
-    const FilterEffect& rhs) const {
-  return type == rhs.type && amount == rhs.amount &&
-         drop_shadow_offset == rhs.drop_shadow_offset &&
-         drop_shadow_color == rhs.drop_shadow_color;
-}
-
 }  // namespace ui