Manual Revert "Introduces the default sound for notifications."

> Introduces the default sound for notifications.
>
> Currently no one is using this but will be used soon.
>
> BUG=164248
> R=dewittj@chromium.org, jhawkins@chromium.org
>
> Review URL: https://codereview.chromium.org/15896033
>
> git-svn-id: svn://svn.chromium.org/chrome/trunk/src@203991 0039d316-1c4b-4281-b951-d872f2087c98

TBR=mukai@chromium.org, sreeram@chromium.org

Review URL: https://codereview.chromium.org/16359012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@203997 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/browser_resources.grd

@@ -360,7 +360,6 @@
       <include name="IDR_PROFILE_SIGNIN_CONFIRMATION_CSS" file="resources\profile_signin_confirmation.css" type="BINDATA" />
 
       <include name="IDR_RECENTLY_CLOSED_WINDOW" file="resources\ntp4\images\closed_window.png" type="BINDATA" />
-      <include name="IDR_NOTIFICATIONS_SOUND_DEFAULT" file="resources\notifications\default-notification.wav" type="BINDATA" />
     </includes>
   </release>
 </grit>