Revert of [DevTools] Fix favicon images on chrome://inspect

chrome/browser/android/tab_android.cc

Index: chrome/browser/android/tab_android.cc
diff --git a/chrome/browser/android/tab_android.cc b/chrome/browser/android/tab_android.cc
index a0e0cbaa7f2d947ea7e906493230f03ce60809dc..7ea7eb6dc4dc62ec567ef3a8488282443d143c9c 100644
--- a/chrome/browser/android/tab_android.cc
+++ b/chrome/browser/android/tab_android.cc
@@ -687,16 +687,6 @@
   return bitmap;
 }
 
-SkBitmap TabAndroid::GetFaviconBitmap() {
-  JNIEnv* env = base::android::AttachCurrentThread();
-  ScopedJavaLocalRef<jobject> javaBitmap =
-      Java_Tab_getFavicon(env, weak_java_tab_.get(env).obj());
-  if (!javaBitmap.obj())
-    return SkBitmap();
-
-  return gfx::CreateSkBitmapFromJavaBitmap(gfx::JavaBitmap(javaBitmap.obj()));
-}
-
 prerender::PrerenderManager* TabAndroid::GetPrerenderManager() const {
   Profile* profile = GetProfile();
   if (!profile)