We don't actually use this anywhere, so let's remove it.

https://github.com/facebook/react/blob/f1d00156df5453bc62bd5668fefdcac4ca67e90e/src/renderers/shared/fiber/ReactFiberScheduler.js#L1504-L1512
OffscreenPriority,
} = require('ReactPriorityLevel');
var {AsyncUpdates} = require('ReactTypeOfInternalContext');
var {
  PerformedWork,
  Placement,
  Update,
  PlacementAndUpdate,
  Deletion,
  ContentReset,
  Callback,
  Err,
  Ref,
} = require('ReactTypeOfSideEffect');
var {
  HostRoot,
  HostComponent,
  HostPortal,
  ClassComponent,
} = require('ReactTypeOfWork');
var {getUpdatePriority} = require('ReactFiberUpdateQueue');
var {resetContext} = require('ReactFiberContext');
var invariant = require('fbjs/lib/invariant');
if (__DEV__) {
  var warning = require('fbjs/lib/warning');
  var ReactFiberInstrumentation = require('ReactFiberInstrumentation');
  var ReactDebugCurrentFiber = require('ReactDebugCurrentFiber');
  var {
    recordEffect,
    recordScheduleUpdate,