[chromedriver] Remove warning message for GetCurrentUrl.

chrome/test/chromedriver/window_commands.cc

Index: chrome/test/chromedriver/window_commands.cc
diff --git a/chrome/test/chromedriver/window_commands.cc b/chrome/test/chromedriver/window_commands.cc
index 786f185b01ace9da3dc4ac7cd33df406425325fd..ff0be7fa2c2e8505d49f6d99f16f715a51593886 100644
--- a/chrome/test/chromedriver/window_commands.cc
+++ b/chrome/test/chromedriver/window_commands.cc
@@ -467,14 +467,6 @@ Status ExecuteGetCurrentUrl(
         return status;
     }
   }
-  if (!session->GetCurrentFrameId().empty()) {
-    // TODO(samuong): remove this after we release ChromeDriver 2.21.
-    LOG(WARNING)
-        << "As of ChromeDriver 2.21, GetCurrentUrl now returns the "
-           "URL of the top-level browsing context, not the current frame. "
-           "See https://code.google.com/p/chromedriver/issues/detail?id=1249 "
-           "for details and workarounds.";
-  }
   value->reset(new base::StringValue(url));
   return Status(kOk);
 }