Revert of [Android WebView] Synthesize a fake page loading event on page source modification

android_webview/native/aw_web_contents_delegate.cc

Index: android_webview/native/aw_web_contents_delegate.cc
diff --git a/android_webview/native/aw_web_contents_delegate.cc b/android_webview/native/aw_web_contents_delegate.cc
index d2a71e6e56c416454e1e971eed67362419a6cc46..acece1bf63e245fab3344e72cb01fed5e16c447e 100644
--- a/android_webview/native/aw_web_contents_delegate.cc
+++ b/android_webview/native/aw_web_contents_delegate.cc
@@ -163,18 +163,6 @@
   }
 }
 
-void AwWebContentsDelegate::NavigationStateChanged(
-    content::WebContents* source,
-    content::InvalidateTypes changed_flags) {
-  JNIEnv* env = AttachCurrentThread();
-
-  ScopedJavaLocalRef<jobject> java_delegate = GetJavaDelegate(env);
-  if (java_delegate.obj()) {
-    Java_AwWebContentsDelegate_navigationStateChanged(env, java_delegate.obj(),
-                                                      changed_flags);
-  }
-}
-
 // Notifies the delegate about the creation of a new WebContents. This
 // typically happens when popups are created.
 void AwWebContentsDelegate::WebContentsCreated(