STORM-1615 WIP Removing directories for Simplified Chinese translations...

STORM-1615 WIP Removing directories for Simplified Chinese translations because the language is not currently supported.

indra/newview/skins/default/xui/zh_CN/floater_buy_currency_html.xml

-<?xml version="1.0" encoding="utf-8" standalone="yes"?>
-<floater name="floater_buy_currency_html" title="BUY CURRENCY (TODO: Translate to Simplified Chinese)"/>

indra/newview/skins/minimal/xui/zh_CN/menu_script_chiclet.xml

-<?xml version="1.0" encoding="utf-8" standalone="yes"?>
-<menu name="ScriptChiclet Menu">
-	<menu_item_call label="Close (TODO: translate to Simplified Chinese)" name="Close"/>
-</menu>