removing the "package main" from isprinttable

subjects/isprintable.en.md

@@ -7,7 +7,6 @@ Write a function that returns `true` if the `string` passed in parameter only co
 ### Expected function
 
 ```go
-package main
 func IsPrintable(str string) bool {
 
 }

subjects/isprintable.fr.md

@@ -7,7 +7,6 @@
 ### Fonction attendue
 
 ```go
-package main
 func IsPrintable(str string) bool {
 
 }