Greater Manchester Police confirmed it had 'dismantled' the massive event via sound system suppliers.The force had issued a number of warnings about attending banned events in the run up to this weekend.Rave organisers are said to have posted about the event being called off due to police action.A statement released by GMP said: "Following two large illegal raves that were held last month, GMP set-up a dedicated operation to carefully monitor any planned future events, in addition to fully