Inherit type of queueMicrotask from Flow

Summary:
Changelog: [Internal]

Now that Flow releases include a type def of `queueMicrotask`,
we can just inherit it from Flow

Reviewed By: yungsters

Differential Revision: D31754482

fbshipit-source-id: f42f8ec955f898d7a964ff85b6061d4840590d4d

flow/global.js

@@ -49,11 +49,7 @@ declare var global: {
   +requestIdleCallback: typeof requestIdleCallback,
   +cancelIdleCallback: typeof cancelIdleCallback,
   +setTimeout: typeof setTimeout,
-  // TODO(T97509743): use `typeof` when the next Flow release is available.
-  +queueMicrotask: <TArguments: Array<mixed>>(
-    jobCallback: (...args: TArguments) => mixed,
-  ) => void,
-
+  +queueMicrotask: typeof queueMicrotask,
   +console: typeof console,
 
   // JavaScript environments specific