[ReactNative] Remove RCTJSTimers

Summary:
@public

Remove `RCTJSTimers.js`, the file was just an alias to `JSTimersExecution`.

Test Plan: Still builds.

Libraries/BatchedBridge/BatchedBridgedModules/RCTJSTimers.js

@@ -1,18 +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 RCTJSTimers
- * @flow
- */
-'use strict';
-
-var JSTimersExecution = require('JSTimersExecution');
-
-var RCTJSTimers = JSTimersExecution;
-
-module.exports = RCTJSTimers;

Libraries/ReactNative/ReactNativeDefaultInjection.js

@@ -40,7 +40,7 @@ var invariant = require('invariant');
 // Just to ensure this gets packaged, since its only caller is from Native.
 require('RCTEventEmitter');
 require('RCTLog');
-require('RCTJSTimers');
+require('JSTimersExecution');
 
 function inject() {
   /**

React/Base/RCTBridge.m

@@ -1245,7 +1245,7 @@ RCT_INNER_BRIDGE_ONLY(_invokeAndProcessModule:(__unused NSString *)module
 {
   RCTAssertJSThread();
 
-  NSString *moduleDotMethod = @"RCTJSTimers.callTimers";
+  NSString *moduleDotMethod = @"JSTimersExecution.callTimers";
   NSNumber *moduleID = RCTLocalModuleIDs[moduleDotMethod];
   RCTAssert(moduleID != nil, @"Module '%@' not registered.",
             [[moduleDotMethod componentsSeparatedByString:@"."] firstObject]);

React/Modules/RCTTiming.m

@@ -74,7 +74,7 @@
 
 RCT_EXPORT_MODULE()
 
-RCT_IMPORT_METHOD(RCTJSTimers, callTimers)
+RCT_IMPORT_METHOD(JSTimersExecution, callTimers)
 
 - (instancetype)init
 {
@@ -153,7 +153,7 @@ RCT_IMPORT_METHOD(RCTJSTimers, callTimers)
 
   // call timers that need to be called
   if ([timersToCall count] > 0) {
-    [_bridge enqueueJSCall:@"RCTJSTimers.callTimers" args:@[timersToCall]];
+    [_bridge enqueueJSCall:@"JSTimersExecution.callTimers" args:@[timersToCall]];
   }
 
   if (_timers.count == 0) {