Disable the scoped handle verifier (and close hook) for M-39

To be merged on 2171.

BUG=418816
R=cpu@chromium.org

Review URL: https://codereview.chromium.org/616713002

Cr-Commit-Position: refs/heads/master@{#297319}

chrome/app/close_handle_hook_win.cc

@@ -66,12 +66,6 @@ void CloseHandleHooks::Unpatch() {
 }
 
 bool UseHooks() {
-  chrome::VersionInfo::Channel channel = chrome::VersionInfo::GetChannel();
-  if (channel == chrome::VersionInfo::CHANNEL_CANARY ||
-      channel == chrome::VersionInfo::CHANNEL_DEV) {
-    return true;
-  }
-
   return false;
 }