Remove flag to disable ignore autocomplete='off' for password forms.

components/autofill/core/common/BUILD.gn

 # Copyright 2014 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.
 
 static_library("common") {
   sources = [
     "autofill_constants.cc",
     "autofill_constants.h",
     "autofill_data_validation.cc",
     "autofill_data_validation.h",
     "autofill_pref_names.cc",
     "autofill_pref_names.h",
     "autofill_switches.cc",
     "autofill_switches.h",
     "form_data.cc",
     "form_data.h",
     "form_data_predictions.cc",
     "form_data_predictions.h",
     "form_field_data.cc",
     "form_field_data.h",
     "form_field_data_predictions.cc",
     "form_field_data_predictions.h",
-    "password_autofill_util.cc",
-    "password_autofill_util.h",
     "password_form.cc",
     "password_form.h",
     "password_form_fill_data.cc",
     "password_form_fill_data.h",
     "password_generation_util.cc",
     "password_generation_util.h",
     "save_password_progress_logger.cc",
     "save_password_progress_logger.h",
     "web_element_descriptor.cc",
     "web_element_descriptor.h",
@@ skipping 19 matching lines @@
     "password_form_fill_data_unittest.cc",
     "save_password_progress_logger_unittest.cc",
   ]
 
   deps = [
     ":common",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }