distiller: Retires support of CreateNewContext.

components/dom_distiller/ios/distiller_page_ios.mm

Index: components/dom_distiller/ios/distiller_page_ios.mm
diff --git a/components/dom_distiller/ios/distiller_page_ios.mm b/components/dom_distiller/ios/distiller_page_ios.mm
index 8f2e29ddb1392982f24430fa4d675a1568c8d1a8..b0e9a6e945108f239b36a468b5b93516b0f0f590 100644
--- a/components/dom_distiller/ios/distiller_page_ios.mm
+++ b/components/dom_distiller/ios/distiller_page_ios.mm
@@ -56,14 +56,6 @@ bool DistillerPageIOS::StringifyOutput() {
  return true;
 }
 
-bool DistillerPageIOS::CreateNewContext() {
-  // UIWebView's JavaScript engine has a bug that causes crashes when
-  // creating a separate window object, so allow the script to run directly
-  // in the window until a better solution is created.
-  // TODO(kkhorimoto): investigate whether this is necessary for WKWebView.
- return false;
-}
-
 void DistillerPageIOS::DistillPageImpl(const GURL& url,
                                        const std::string& script) {
   if (!url.is_valid() || !script.length())