deleted uncessary codes from a example

10_Day_Sets_and_Maps/10_day_Sets_and_Maps.md

@@ -188,7 +188,6 @@ console.log(langSet) // Set(4) {"English", "Finnish", "French", "Spanish"}
 console.log(langSet.size) // 4
 
 const counts = []
-const count = {}
 
 for (const l of langSet) {
   const filteredLang = languages.filter((lng) => lng === l)