Remove unused x509_certificate_model.h include from...

Remove unused x509_certificate_model.h include from chrome/browser/chromeos/options/vpn_config_view.cc

Bug: none
Change-Id: I37bd44bc9ddebf88f7916e21cb90122db870b2b0
Reviewed-on: https://chromium-review.googlesource.com/596715
Commit-Queue: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#491393}

chrome/browser/chromeos/options/vpn_config_view.cc

@@ -17,7 +17,6 @@
 #include "chrome/browser/chromeos/enrollment_dialog_view.h"
 #include "chrome/browser/chromeos/net/shill_error.h"
 #include "chrome/browser/profiles/profile_manager.h"
-#include "chrome/common/net/x509_certificate_model.h"
 #include "chrome/grit/generated_resources.h"
 #include "chromeos/login/login_state.h"
 #include "chromeos/network/network_configuration_handler.h"