remove empty lines and uneeded comment

src/main/java/org/gcube/common/authorization/utils/secret/Secret.java

@@ -45,10 +45,7 @@ public abstract class Secret implements Comparable<Secret> {
 	
 	public void set() throws Exception {
 		setToken();
-		
-		// TODO discuss if this must be done
 		setAuthorizationProvider();
-		
 		ScopeProvider.instance.set(getContext());
 	}