Revert of Adds error handling support for the SwReporter launcher.

chrome/browser/safe_browsing/srt_chrome_prompt_impl.cc

 // Copyright 2017 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.
 
 #include "chrome/browser/safe_browsing/srt_chrome_prompt_impl.h"
 
 #include "base/logging.h"
 
 namespace safe_browsing {
 
 using chrome_cleaner::mojom::ChromePrompt;
 using chrome_cleaner::mojom::ChromePromptRequest;
 using chrome_cleaner::mojom::ElevationStatus;
 using chrome_cleaner::mojom::PromptAcceptance;
 using chrome_cleaner::mojom::UwSPtr;
 
-ChromePromptImpl::ChromePromptImpl(ChromePromptRequest request,
-                                   base::Closure on_connection_closed)
-    : binding_(this, std::move(request)) {
-  binding_.set_connection_error_handler(std::move(on_connection_closed));
-}
+ChromePromptImpl::ChromePromptImpl(ChromePromptRequest request)
+    : binding_(this, std::move(request)) {}
 
 ChromePromptImpl::~ChromePromptImpl() {}
 
 void ChromePromptImpl::PromptUser(
     std::vector<UwSPtr> removable_uws_found,
     ElevationStatus elevation_status,
     const ChromePrompt::PromptUserCallback& callback) {
   // Placeholder. The actual implementation will show the prompt dialog to the
   // user and invoke this callback depending on the user's response.
   callback.Run(PromptAcceptance::DENIED);
 }
 
 }  // namespace safe_browsing