Breaking Bad star Bryan Cranston has tweeted his amazement/amusement upon learning Toys R Us was taking his action figure off its shelves in response to an online petition created by a Florida housewife. Toys R Us, meanwhile, has learned about the downside of the media's deep and abiding love of all things Breaking Bad, when a flood of late-night gags and morning-infotainment-show hand-wringers turned a puny 8,000 signature-strong petition protesting the dolls into a…