Remove references into sky/engine/core/fetch

sky/engine/core/fetch/ResourceFetcher.h

Index: sky/engine/core/fetch/ResourceFetcher.h
diff --git a/sky/engine/core/fetch/ResourceFetcher.h b/sky/engine/core/fetch/ResourceFetcher.h
index 33bb2ee5c512eff16360071b91cbe62874f5c922..a6875b7a7c8f5db6749a2a675909412aaf490110 100644
--- a/sky/engine/core/fetch/ResourceFetcher.h
+++ b/sky/engine/core/fetch/ResourceFetcher.h
@@ -49,7 +49,6 @@ class RawResource;
 class Document;
 class LocalFrame;
 class FrameLoader;
-class ImageLoader;
 class KURL;
 class ResourceLoaderSet;
 
@@ -63,7 +62,6 @@ class ResourceLoaderSet;
 // alive past detach if scripts still reference the Document.
 class ResourceFetcher final : public RefCounted<ResourceFetcher>, public ResourceLoaderHost {
     WTF_MAKE_NONCOPYABLE(ResourceFetcher); WTF_MAKE_FAST_ALLOCATED;
-friend class ImageLoader;
 friend class ResourceCacheValidationSuppressor;
 
 public: