RN: Remove fbjs/{keyMirror,keyOf} Dependencies

Summary:
Removes `fbjs/keyMirror` and `fbjs/keyOf` call sites from React Native.

Changelog:
[Internal]

Reviewed By: cpojer

Differential Revision: D22438238

fbshipit-source-id: 0f84b6e9d81811f95a2a24886f38ad16b8e6e74f

Libraries/Components/Touchable/Touchable.js

@@ -21,7 +21,6 @@ const UIManager = require('../../ReactNative/UIManager');
 const View = require('../View/View');
 const SoundManager = require('../Sound/SoundManager');
 
-const keyMirror = require('fbjs/lib/keyMirror');
 const normalizeColor = require('../../StyleSheet/normalizeColor');
 
 import type {EdgeInsetsProp} from '../../StyleSheet/EdgeInsetsPropType';
@@ -129,16 +128,16 @@ const extractSingleTouch = nativeEvent => {
  * Touchable states.
  */
 
-const States = keyMirror({
-  NOT_RESPONDER: null, // Not the responder
-  RESPONDER_INACTIVE_PRESS_IN: null, // Responder, inactive, in the `PressRect`
-  RESPONDER_INACTIVE_PRESS_OUT: null, // Responder, inactive, out of `PressRect`
-  RESPONDER_ACTIVE_PRESS_IN: null, // Responder, active, in the `PressRect`
-  RESPONDER_ACTIVE_PRESS_OUT: null, // Responder, active, out of `PressRect`
-  RESPONDER_ACTIVE_LONG_PRESS_IN: null, // Responder, active, in the `PressRect`, after long press threshold
-  RESPONDER_ACTIVE_LONG_PRESS_OUT: null, // Responder, active, out of `PressRect`, after long press threshold
-  ERROR: null,
-});
+const States = {
+  NOT_RESPONDER: 'NOT_RESPONDER', // Not the responder
+  RESPONDER_INACTIVE_PRESS_IN: 'RESPONDER_INACTIVE_PRESS_IN', // Responder, inactive, in the `PressRect`
+  RESPONDER_INACTIVE_PRESS_OUT: 'RESPONDER_INACTIVE_PRESS_OUT', // Responder, inactive, out of `PressRect`
+  RESPONDER_ACTIVE_PRESS_IN: 'RESPONDER_ACTIVE_PRESS_IN', // Responder, active, in the `PressRect`
+  RESPONDER_ACTIVE_PRESS_OUT: 'RESPONDER_ACTIVE_PRESS_OUT', // Responder, active, out of `PressRect`
+  RESPONDER_ACTIVE_LONG_PRESS_IN: 'RESPONDER_ACTIVE_LONG_PRESS_IN', // Responder, active, in the `PressRect`, after long press threshold
+  RESPONDER_ACTIVE_LONG_PRESS_OUT: 'RESPONDER_ACTIVE_LONG_PRESS_OUT', // Responder, active, out of `PressRect`, after long press threshold
+  ERROR: 'ERROR',
+};
 
 type State =
   | typeof States.NOT_RESPONDER
@@ -190,15 +189,15 @@ const IsLongPressingIn = {
 /**
  * Inputs to the state machine.
  */
-const Signals = keyMirror({
-  DELAY: null,
-  RESPONDER_GRANT: null,
-  RESPONDER_RELEASE: null,
-  RESPONDER_TERMINATED: null,
-  ENTER_PRESS_RECT: null,
-  LEAVE_PRESS_RECT: null,
-  LONG_PRESS_DETECTED: null,
-});
+const Signals = {
+  DELAY: 'DELAY',
+  RESPONDER_GRANT: 'RESPONDER_GRANT',
+  RESPONDER_RELEASE: 'RESPONDER_RELEASE',
+  RESPONDER_TERMINATED: 'RESPONDER_TERMINATED',
+  ENTER_PRESS_RECT: 'ENTER_PRESS_RECT',
+  LEAVE_PRESS_RECT: 'LEAVE_PRESS_RECT',
+  LONG_PRESS_DETECTED: 'LONG_PRESS_DETECTED',
+};
 
 type Signal =
   | typeof Signals.DELAY

Libraries/Interaction/InteractionManager.js

@@ -15,7 +15,6 @@ const TaskQueue = require('./TaskQueue');
 
 const infoLog = require('../Utilities/infoLog');
 const invariant = require('invariant');
-const keyMirror = require('fbjs/lib/keyMirror');
 
 import EventEmitter from '../vendor/emitter/EventEmitter';
 
@@ -77,10 +76,10 @@ const DEBUG: false = false;
  * from executing, making apps more responsive.
  */
 const InteractionManager = {
-  Events: keyMirror({
-    interactionStart: true,
-    interactionComplete: true,
-  }),
+  Events: {
+    interactionStart: 'interactionStart',
+    interactionComplete: 'interactionComplete',
+  },
 
   /**
    * Schedule a function to run after all interactions have completed. Returns a cancellable

Libraries/Utilities/buildStyleInterpolator.js

@@ -9,11 +9,9 @@
 
 'use strict';
 
-const keyOf = require('fbjs/lib/keyOf');
-
-const X_DIM = keyOf({x: null});
-const Y_DIM = keyOf({y: null});
-const Z_DIM = keyOf({z: null});
+const X_DIM = 'x';
+const Y_DIM = 'y';
+const Z_DIM = 'z';
 
 const InitialOperationField = {
   transformTranslate: [0, 0, 0],