Apple Inc. (NASDAQ:AAPL) is set to bid farewell to its App Store head, Matt Fischer, who has been at the helm of the App Store business since 2010. What Happened: On Wednesday, in an email to his team, Fischer said, “After 21 years at Apple, I’ve made the decision to step away from our incredible company.” In the same email, he also expressed that the re-organization was the opportune time to hand over the reins to two exceptional leaders on his team. Fischer will part ways with the company in October, reported Bloomberg, citing people with knowledge of the matter. See Also: How To Take The Pe…