Remove user_id from top_n

mocha_server.py

@@ -94,7 +94,7 @@ def fetch_top_n(num):
     conn = sqlite3.connect(DATABASE)
     conn.row_factory = sqlite3.Row
     cursor = conn.cursor()
-    cursor.execute('SELECT * FROM users ORDER BY score DESC')
+    cursor.execute('SELECT username, score FROM users ORDER BY score DESC')
     output = cursor.fetchall()
 
     num = int(num)