Revert "Update languages"

This reverts commit dae0704e.

Turns out these paths were not intended to be renamed.

utils/rna_manual_reference_updater.py

@@ -91,8 +91,8 @@ fw("    \"ko_KR\":        \"ko\",\n")  # Korean
 #fw("    \"pl_PL":         \"pl",\n")
 fw("    \"pt_PT\":        \"pt\",\n")  # Portuguese
 fw("    \"pt_BR\":        \"pt\",\n")  # Portuguese - for until we have a pt_BR version
-fw("    \"zh_CN\":        \"zh-hans\",\n")  # Chinese - Should be changed to "zh_cn" but there is a bug in sphinx-intl
-fw("    \"zh_TW\":        \"zh-hant\",\n")  # Taiwanese Chinese
+fw("    \"zh_CN\":        \"zh.cn\",\n")  # Chinese - Should be changed to "zh_cn" but there is a bug in sphinx-intl
+fw("    \"zh_TW\":        \"zh.tw\",\n")  # Taiwanese Chinese
 fw("}.get(language)\n\n")
 fw("if LANG is not None:\n")
 fw("    url_manual_prefix = url_manual_prefix.replace(\"manual/en\", \"manual/\" + LANG)\n\n")