[ios] Removed deprecated JS execution API.

ios/web/web_state/js/crw_js_injection_receiver.mm

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "ios/web/public/web_state/js/crw_js_injection_receiver.h"
 
 #include "base/logging.h"
 #import "base/mac/scoped_nsobject.h"
 #import "ios/web/public/web_state/js/crw_js_injection_evaluator.h"
 #import "ios/web/public/web_state/js/crw_js_injection_manager.h"
@@ skipping 18 matching lines @@
   if (self) {
     _evaluator = evaluator;
     _managers.reset([[NSMutableDictionary alloc] init]);
   }
   return self;
 }
 
 #pragma mark -
 #pragma mark CRWJSInjectionEvaluatorMethods
 
-- (void)evaluateJavaScript:(NSString*)script
-       stringResultHandler:(web::JavaScriptCompletion)handler {
-  [_evaluator evaluateJavaScript:script stringResultHandler:handler];
-}
-
 - (void)executeJavaScript:(NSString*)script
         completionHandler:(web::JavaScriptResultBlock)completionHandler {
   [_evaluator executeJavaScript:script completionHandler:completionHandler];
 }
 
 - (BOOL)scriptHasBeenInjectedForClass:(Class)injectionManagerClass {
   return [_evaluator scriptHasBeenInjectedForClass:injectionManagerClass];
 }
 
 - (void)injectScript:(NSString*)script forClass:(Class)jsInjectionManagerClass {
@@ skipping 14 matching lines @@
   return manager;
 }
 
 @end
 
 @implementation CRWJSInjectionReceiver (Testing)
 - (NSDictionary*)managers {
   return _managers.get();
 }
 @end