content: Miscellaneous edits

content/en/functions/math/Product.md

@@ -15,8 +15,6 @@ action:
   signatures: [math.Product VALUE...]
 ---
 
-{{< new-in 0.114.0 />}}
-
 ```go-html-template
 {{ math.Product 1 (slice 2 3) 4 }} → 24
 ```

content/en/functions/math/Sum.md

@@ -14,8 +14,6 @@ action:
   signatures: [math.Sum VALUE...]
 ---
 
-{{< new-in 0.114.0 />}}
-
 ```go-html-template
 {{ math.Sum 1 (slice 2 3) 4 }} → 10
 ```