fixed EXT-6858 Corrupted timestamp for system notification about CAPSLOCK is on

Removed useless sending notification "CapsKeyOn" since it doesn't fit actual design;

reviewed by Vadim Savchuk https://codereview.productengine.com/secondlife/r/277/

--HG--
branch : product-engine

indra/newview/llpanellogin.cpp

@@ -1007,7 +1007,7 @@ void LLPanelLogin::onPassKey(LLLineEditor* caller, void* user_data)
 {
 	if (gKeyboard->getKeyDown(KEY_CAPSLOCK) && sCapslockDidNotification == FALSE)
 	{
-		LLNotificationsUtil::add("CapsKeyOn");
+// *TODO: use another way to notify user about enabled caps lock, see EXT-6858
 		sCapslockDidNotification = TRUE;
 	}
 }