Abdul Sattar Suleman Mithaiwala – the soft-spoken yet steely owner of the popular sweetmeat shop and a bakery on Mohammed Ali Road, passed away in the wee hours of Monday.   ‘Sattarbhai’ – as he was known to all - was 79, and remained a friendly and familiar bearded figure in his tiny office behind the sweetmeat shop where he met visitors, lawyers, journalists and cops.   After all, he was one of the most identifiable faces connected with the dual riots that rocked Mumbai – f