Rollback values-zh-rCN/strings.xml

Rollback values-zh-rCN/strings.xml to previous version.

Translations from Jiangyi contains punctuation errors and are in bad quality.

Hi Jiangyi, are you native Simplified Chinese speaker? Please do not simply overwrite the whole translation. If you are sure you have better Simplified Chinese translation for some of the items, make changes only to them. Thanks.