Remove the unused HostingView hack

Author: dreampiggy

SDWebImageSwiftUI/Classes/AnimatedImage.swift

@@ -261,21 +261,6 @@ public struct AnimatedImage : PlatformViewRepresentable {
             }
             self.imageHandler.progressBlock?(receivedSize, expectedSize)
         }) { (image, data, error, cacheType, finished, _) in
-            if #available(iOS 14.0, macOS 11.0, watchOS 7.0, tvOS 14.0, *) {
-                // Do nothing. on iOS 14's SwiftUI, the @Published will always trigger another `updateUIView` call with new UIView instance.
-            } else {
-                // This is a hack because of iOS 13's SwiftUI bug, the @Published does not trigger another `updateUIView` call
-                // Here I have to use UIKit/AppKit API to triger the same effect (the window change implicitly cause re-render)
-                if let hostingView = view.findHostingView() {
-                    if let _ = hostingView.window {
-                        #if os(macOS)
-                        hostingView.viewDidMoveToWindow()
-                        #else
-                        hostingView.didMoveToWindow()
-                        #endif
-                    }
-                }
-            }
             context.coordinator.imageLoading.image = image
             context.coordinator.imageLoading.isLoading = false
             context.coordinator.imageLoading.progress = 1

SDWebImageSwiftUI/Classes/ImageViewWrapper.swift

@@ -82,20 +82,6 @@ extension PlatformView {
         self.leadingAnchor.constraint(equalTo: superview.leadingAnchor, constant: 0).isActive = true
         self.trailingAnchor.constraint(equalTo: superview.trailingAnchor, constant: 0).isActive = true
     }
-    
-    /// Finding the HostingView for UIKit/AppKit View.
-    /// - Parameter entry: The entry platform view
-    /// - Returns: The hosting view.
-    func findHostingView() -> PlatformView? {
-        var superview = self.superview
-        while let s = superview {
-            if NSStringFromClass(type(of: s)).contains("HostingView") {
-                return s
-            }
-            superview = s.superview
-        }
-        return nil
-    }
 }
 
 #endif