update gopy with correct decoration

dezendorf/applications/gopy/gopy.py

@@ -39,11 +39,6 @@ def get_links():
 def hello_world():
     return "<p>Hello, World!</p>"
 
-@app.route('/')
-def hello_world():
-    return "<p>Hello, World!</p>"
-
-
 #@app.route('/links/<int:id>', methods=['GET'])
 
 if __name__ == "__main__":