Remove alt text from images.

sky/engine/core/fetch/ImageResource.h

Index: sky/engine/core/fetch/ImageResource.h
diff --git a/sky/engine/core/fetch/ImageResource.h b/sky/engine/core/fetch/ImageResource.h
index 0c0394b1f93804fa0ef7952062ca1bab58864911..352bae8178e33161f57da287d86c9815d1214079 100644
--- a/sky/engine/core/fetch/ImageResource.h
+++ b/sky/engine/core/fetch/ImageResource.h
@@ -59,7 +59,6 @@ public:
     bool currentFrameKnownToBeOpaque(const RenderObject*); // Side effect: ensures decoded image is in cache, therefore should only be called when about to draw the image.
 
     static std::pair<blink::Image*, float> brokenImage(float deviceScaleFactor); // Returns an image and the image's resolution scale factor.
-    bool willPaintBrokenImage() const;
 
     bool canRender(const RenderObject& renderer) { return !errorOccurred() && !imageSizeForRenderer(&renderer).isEmpty(); }