Delete deprecated -[CWVWebView view].

ios/web_view/internal/cwv_web_view.mm

Index: ios/web_view/internal/cwv_web_view.mm
diff --git a/ios/web_view/internal/cwv_web_view.mm b/ios/web_view/internal/cwv_web_view.mm
index 44574ef2a297964588ed65bcad3e05d74a6f6be3..b2af84b4f89d1828556d9f6e8816e27b985ee802 100644
--- a/ios/web_view/internal/cwv_web_view.mm
+++ b/ios/web_view/internal/cwv_web_view.mm
@@ -101,10 +101,6 @@
   [self addSubview:subview];
 }
 
-- (UIView*)view {
-  return _webState->GetView();
-}
-
 - (BOOL)canGoBack {
   return _webState && _webState->GetNavigationManager()->CanGoBack();
 }