[ios clean] Remove stop on Browser coordinator dealloc

ios/clean/chrome/browser/browser_coordinator.h

 // Copyright 2016 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.
 
 // ======                        New Architecture                         =====
 // =         This code is only used in the new iOS Chrome architecture.       =
 // ============================================================================
 
 #ifndef IOS_CLEAN_CHROME_BROWSER_BROWSER_COORDINATOR_H_
 #define IOS_CLEAN_CHROME_BROWSER_BROWSER_COORDINATOR_H_
@@ skipping 21 matching lines @@
 @property(nonatomic, assign) ios::ChromeBrowserState* browserState;
 
 // The basic lifecycle methods for coordinators are -start and -stop. These
 // are blank template methods; child classes are expected to implement them and
 // do not need to invoke the superclass methods.
 // Starts the user interaction managed by the receiver. Typical implementations
 // will create a view controller and then use |baseViewController| to present
 // it.
 - (void)start;
 
-// Stops the user interaction managed by the receiver. Called on dealloc.
+// Stops the user interaction managed by the receiver.
 - (void)stop;
 
 @end
 
 #endif  // IOS_CLEAN_CHROME_BROWSER_BROWSER_COORDINATOR_H_