Stop exposing shallow renderer from TestUtils (#10682)

* Stop exposing ShallowRenderer from TestUtils

* Record sizes

* Lint

Author: gaearon

scripts/rollup/results.json

@@ -49,12 +49,12 @@
       "gzip": 94276
     },
     "react-dom-test-utils.development.js (NODE_DEV)": {
-      "size": 53750,
-      "gzip": 13493
+      "size": 44954,
+      "gzip": 11677
     },
     "ReactTestUtils-dev.js (FB_DEV)": {
-      "size": 53159,
-      "gzip": 13402
+      "size": 44385,
+      "gzip": 11593
     },
     "react-dom-unstable-native-dependencies.development.js (UMD_DEV)": {
       "size": 88140,

src/renderers/dom/test/ReactTestUtilsEntry.js

@@ -16,16 +16,11 @@ var React = require('react');
 var ReactDOM = require('react-dom');
 var ReactFiberTreeReflection = require('ReactFiberTreeReflection');
 var ReactInstanceMap = require('ReactInstanceMap');
-var ReactShallowRenderer = require('ReactShallowRendererEntry'); // TODO (bvaughn) Remove this import before 16.0.0
 var ReactTypeOfWork = require('ReactTypeOfWork');
 var SyntheticEvent = require('SyntheticEvent');
 
 var invariant = require('fbjs/lib/invariant');
 
-if (__DEV__) {
-  var warning = require('fbjs/lib/warning');
-}
-
 var {findDOMNode} = ReactDOM;
 var {
   EventPluginHub,
@@ -44,20 +39,6 @@ var {
   HostText,
 } = ReactTypeOfWork;
 
-// TODO (bvaughn) Remove this warning before 16.0.0
-// It's only being added for temporary deprecation notice in RN.
-let warnedAboutShallowRenderer = false;
-function createRendererWithWarning() {
-  warning(
-    warnedAboutShallowRenderer,
-    'Shallow renderer has been moved to react-test-renderer/shallow. ' +
-      'Update references to remove this warning. ' +
-      'TestUtils.createRenderer will be removed completely in React 16.',
-  );
-  warnedAboutShallowRenderer = true;
-  return new ReactShallowRenderer();
-}
-
 function Event(suffix) {}
 
 /**
@@ -394,10 +375,6 @@ var ReactTestUtils = {
     };
   },
 
-  // TODO (bvaughn) Remove this warning accessor before 16.0.0.
-  // It's only being added for temporary deprecation notice in RN.
-  createRenderer: createRendererWithWarning,
-
   Simulate: null,
   SimulateNative: {},
 };