A few years ago, declining a FarmVille request on Facebook or not knowing of Restaurant Story was akin to committing social harakiri. That no longer seems to be the case. Figures from metrics tracking firm SuperData, which were out recently, reveal that social gaming is on the decline. Their data shows that the total number of monthly active social gamers have dropped below 200 million for the first time in over a year, down by 10 million users in March in comparison to February. It even noted that revenues from social gaming had fallen. Almost on cue, Electronic Arts (EA)…