Remove unused packaged app window controls code.

chrome/renderer/resources/renderer_resources.grd

Index: chrome/renderer/resources/renderer_resources.grd
diff --git a/chrome/renderer/resources/renderer_resources.grd b/chrome/renderer/resources/renderer_resources.grd
index 889ff84bd8bf38610f83a1938e2dc5d03b733030..55c3b238dff937b74a0c3d5a94cd85a9598ac735 100644
--- a/chrome/renderer/resources/renderer_resources.grd
+++ b/chrome/renderer/resources/renderer_resources.grd
@@ -63,7 +63,6 @@
         <include name="IDR_SYSTEM_INDICATOR_CUSTOM_BINDINGS_JS" file="extensions\system_indicator_custom_bindings.js" type="BINDATA" />
         <include name="IDR_TAB_CAPTURE_CUSTOM_BINDINGS_JS" file="extensions\tab_capture_custom_bindings.js" type="BINDATA" />
         <include name="IDR_TABS_CUSTOM_BINDINGS_JS" file="extensions\tabs_custom_bindings.js" type="BINDATA" />
-        <include name="IDR_TAG_WATCHER_JS" file="extensions\tag_watcher.js" type="BINDATA" />
         <include name="IDR_TTS_CUSTOM_BINDINGS_JS" file="extensions\tts_custom_bindings.js" type="BINDATA" />
         <include name="IDR_TTS_ENGINE_CUSTOM_BINDINGS_JS" file="extensions\tts_engine_custom_bindings.js" type="BINDATA" />
         <include name="IDR_WEBRTC_DESKTOP_CAPTURE_PRIVATE_CUSTOM_BINDINGS_JS" file="extensions\webrtc_desktop_capture_private_custom_bindings.js" type="BINDATA" />