fix: update hashmaps3.rs

Author: b-apperlo

exercises/hashmaps/hashmaps3.rs

@@ -20,7 +20,6 @@ use std::collections::HashMap;
 
 // A structure to store team name and its goal details.
 struct Team {
-    name: String,
     goals_scored: u8,
     goals_conceded: u8,
 }