diff --git a/src/gfx/webrender_bindings/WebRenderAPI-cpp.patch b/src/gfx/webrender_bindings/WebRenderAPI-cpp.patch
deleted file mode 100644
index c76a7eee0..000000000
--- a/src/gfx/webrender_bindings/WebRenderAPI-cpp.patch
+++ /dev/null
@@ -1,15 +0,0 @@
-diff --git a/gfx/webrender_bindings/WebRenderAPI.cpp b/gfx/webrender_bindings/WebRenderAPI.cpp
-index 1ffce6399075fda4c9bd9b06530cc1e80a01dd17..13de395ed9f1a3c35fcaddf31c4ba3c364479483 100644
---- a/gfx/webrender_bindings/WebRenderAPI.cpp
-+++ b/gfx/webrender_bindings/WebRenderAPI.cpp
-@@ -300,7 +300,9 @@ RefPtr<WebRenderAPI::CreatePromise> WebRenderAPI::Create(
-                 StaticPrefs::gfx_webrender_low_quality_pinch_zoom_AtStartup(),
-                 StaticPrefs::gfx_webrender_max_shared_surface_size_AtStartup(),
-                 StaticPrefs::gfx_webrender_enable_subpixel_aa_AtStartup(),
--                compositor->ShouldUseLayerCompositor())) {
-+                compositor->ShouldUseLayerCompositor(),
-+                StaticPrefs::
-+                    gfx_webrender_opaque_backdrop_fallback_AtStartup())) {
-           // wr_window_new puts a message into gfxCriticalNote if it returns
-           // false
-           MOZ_ASSERT(errorMessage);