Revert of Enable HTTP cleartext configuration for Webview

android_webview/browser/net/aw_url_request_context_getter.h

Index: android_webview/browser/net/aw_url_request_context_getter.h
diff --git a/android_webview/browser/net/aw_url_request_context_getter.h b/android_webview/browser/net/aw_url_request_context_getter.h
index 44bf77a05c4fe8c1eb65b6f16e56422ba4c8f0c9..9264092ea4e829124e26c86f205e639c3df24b23 100644
--- a/android_webview/browser/net/aw_url_request_context_getter.h
+++ b/android_webview/browser/net/aw_url_request_context_getter.h
@@ -46,8 +46,6 @@
   // NetLog is thread-safe, so clients can call this method from arbitrary
   // threads (UI and IO).
   net::NetLog* GetNetLog();
-
-  static void set_check_cleartext_permitted(bool permitted);
 
  private:
   friend class AwBrowserContext;