Revert "Fix access to system catalog strings."

This reverts commit 6d2186615f.

src/kits/locale/HashMapCatalog.cpp

@@ -124,10 +124,7 @@ BHashMapCatalog::GetString(const char *string, const char *context,
 	const char *comment)
 {
 	CatKey key(string, context, comment);
-	BString value = fCatMap.Get(key);
+	return GetString(key);
-	if (value.Length() != 0)
-		return value.String();
-	return string;
 }