WebUI: Remove incorrect imports from some Polymer2 JS files.

Polymer2 files processed by polymer_modulizer() should not have
"// #import " comments. Instead, their JS imports are auto-generated
by translating HTML imports from the corresponding HTML file.

Note that these comments are no-op currently, as they are not processed
by polymer_modulizer().

Bug: 1152687
Change-Id: If908cce6d21f4766590b2c97b354f2ac899d8625
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2560679
Commit-Queue: Rebekah Potter <rbpotter@chromium.org>
Reviewed-by: Rebekah Potter <rbpotter@chromium.org>
Auto-Submit: dpapad <dpapad@chromium.org>
Cr-Commit-Position: refs/heads/master@{#831030}

chrome/browser/resources/settings/chromeos/multidevice_page/multidevice_smartlock_subpage.js

@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// #import {OsSettingsRoutes} from './os_settings_routes.m.js'
-
 Polymer({
   is: 'settings-multidevice-smartlock-subpage',
 

chrome/browser/resources/settings/chromeos/os_languages_page/os_edit_dictionary_page.js

@@ -7,13 +7,6 @@
  * the "dictionary" of custom words used for spell check.
  */
 
-// clang-format off
-// #import {GlobalScrollTargetBehavior} from '../../global_scroll_target_behavior.m.js';
-// #import {loadTimeData} from '../../i18n_setup.js';
-// #import {PrefsBehavior} from '../../prefs/prefs_behavior.m.js';
-// #import {LanguagesBrowserProxyImpl} from '../../languages_page/languages_browser_proxy.m.js';
-// clang-format on
-
 // Max valid word size, keep in sync with kMaxCustomDictionaryWordBytes in
 // //components/spellcheck/common/spellcheck_common.h
 const MAX_CUSTOM_DICTIONARY_WORD_BYTES = 99;

ui/webui/resources/cr_elements/cr_fingerprint/cr_fingerprint_progress_arc.js

@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// #import {CrLottieElement} from '../cr_lottie/cr_lottie.m.js';
-
 /** @type {string} */
 /* #export */ const FINGEPRINT_TICK_DARK_URL =
     'chrome://theme/IDR_FINGERPRINT_COMPLETE_TICK_DARK';