Revert "Remove unused strings."

This reverts commit b0318df3b3f13fc61b97c1309e7426b9a586e603.

	modified:   res/values-cs/strings.xml
	modified:   res/values-da/strings.xml
	modified:   res/values-de/strings.xml
	modified:   res/values-el/strings.xml
	modified:   res/values-es-rUS/strings.xml
	modified:   res/values-es/strings.xml
	modified:   res/values-fr/strings.xml
	modified:   res/values-it/strings.xml
	modified:   res/values-ja/strings.xml
	modified:   res/values-ko/strings.xml
	modified:   res/values-nb/strings.xml
	modified:   res/values-nl/strings.xml
	modified:   res/values-pl/strings.xml
	modified:   res/values-pt-rPT/strings.xml
	modified:   res/values-pt/strings.xml
	modified:   res/values-ru/strings.xml
	modified:   res/values-sv/strings.xml
	modified:   res/values-tr/strings.xml
	modified:   res/values-zh-rCN/strings.xml
	modified:   res/values-zh-rTW/strings.xml
	modified:   res/values/strings.xml
21 files changed