Remove unused RCTRenderingPerf

Reviewed By: josephsavona

Differential Revision: D5292898

fbshipit-source-id: 33605c994c3457134556acc328542611a2247d27

Libraries/Core/InitializeCore.js

@@ -217,10 +217,6 @@ if (__DEV__) {
 
     require('RCTDebugComponentOwnership');
 
-    // In order to use Cmd+P to record/dump perf data, we need to make sure
-    // this module is available in the bundle
-    require('RCTRenderingPerf');
-
     // Set up inspector
     const JSInspector = require('JSInspector');
     JSInspector.registerAgent(require('NetworkAgent'));

Libraries/Performance/RCTRenderingPerf.js

@@ -1,61 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- *
- * @providesModule RCTRenderingPerf
- * @flow
- */
-'use strict';
-
-var invariant = require('fbjs/lib/invariant');
-var performanceNow = require('fbjs/lib/performanceNow');
-
-type perfModule = {
-  start: () => void,
-  stop: () => void,
-}
-
-var perfModules = [];
-var enabled = false;
-
-var RCTRenderingPerf = {
-  // Once perf is enabled, it stays enabled
-  toggle: function() {
-    console.log('Render perfomance measurements enabled');
-    enabled = true;
-  },
-
-  start: function() {
-    if (!enabled) {
-      return;
-    }
-
-    perfModules.forEach((module) => module.start());
-  },
-
-  stop: function() {
-    if (!enabled) {
-      return;
-    }
-
-    perfModules.forEach((module) => module.stop());
-  },
-
-  register: function(module: perfModule) {
-    invariant(
-      typeof module.start === 'function',
-      'Perf module should have start() function'
-    );
-    invariant(
-      typeof module.stop === 'function',
-      'Perf module should have stop() function'
-    );
-    perfModules.push(module);
-  }
-};
-
-module.exports = RCTRenderingPerf;