Removed takeSnapshot util function from ReactNative renderer

Summary:
It was added to react-native-implementation in c7387fe

Relates to [this comment](848593c#commitcomment-21585552) and issue #13343

cc janicduplessis
Closes #13347

Reviewed By: bvaughn

Differential Revision: D4843898

Pulled By: ericvicenti

fbshipit-source-id: 2b83d7bd71b7a7e6961e4da551ddd4090af03824

Author: Brian Vaughn

Libraries/Renderer/src/renderers/native/ReactNativeFiber.js

@@ -29,7 +29,6 @@ const deepFreezeAndThrowOnMutationInDev = require('deepFreezeAndThrowOnMutationI
 const emptyObject = require('fbjs/lib/emptyObject');
 const findNodeHandle = require('findNodeHandle');
 const invariant = require('fbjs/lib/invariant');
-const takeSnapshot = require('takeSnapshot');
 
 const {injectInternals} = require('ReactFiberDevToolsHook');
 
@@ -421,8 +420,6 @@ const ReactNative = {
     return NativeRenderer.getPublicRootInstance(root);
   },
 
-  takeSnapshot,
-
   unmountComponentAtNode(containerTag: number) {
     const root = roots.get(containerTag);
     if (root) {

Libraries/Renderer/src/renderers/native/ReactNativeStack.js

@@ -18,7 +18,6 @@ var ReactNativeStackInjection = require('ReactNativeStackInjection');
 var ReactUpdates = require('ReactUpdates');
 
 var findNodeHandle = require('findNodeHandle');
-var takeSnapshot = require('takeSnapshot');
 
 ReactNativeInjection.inject();
 ReactNativeStackInjection.inject();
@@ -47,8 +46,6 @@ var ReactNative = {
 
   render: render,
 
-  takeSnapshot,
-
   unmountComponentAtNode: ReactNativeMount.unmountComponentAtNode,
 
   /* eslint-disable camelcase */