Revert "[CrOS MultiDevice] Settings UI A11y labels."

This reverts commit a11e3884.

Reason for revert: Suspicious to have broken viz_browser_tests and webui_polymer2_browser_tests.
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/linux-chromeos-dbg/7689
https://logs.chromium.org/logs/chromium/buildbucket/cr-buildbucket.appspot.com/8936081737798843840/+/steps/viz_browser_tests/0/logs/CrSettingsMultideviceFeatureToggleTest.All/0

Original change's description:
> [CrOS MultiDevice] Settings UI A11y labels.
> 
> 
> Bug: 876796
> Change-Id: Ie369384f218fde83ae03f21add99c0573ab97912
> Reviewed-on: https://chromium-review.googlesource.com/1211915
> Reviewed-by: Jeremy Klein <jlklein@chromium.org>
> Reviewed-by: Hector Carmona <hcarmona@chromium.org>
> Commit-Queue: Jordy Greenblatt <jordynass@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#589397}

TBR=hcarmona@chromium.org,jlklein@chromium.org,jordynass@chromium.org

Change-Id: Ife1c75063e197a32142604f3f05c964910721079
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 876796
Reviewed-on: https://chromium-review.googlesource.com/1212212Reviewed-by: Yuki Shiino <yukishiino@chromium.org>
Commit-Queue: Yuki Shiino <yukishiino@chromium.org>
Cr-Commit-Position: refs/heads/master@{#589469}

chrome/browser/resources/settings/multidevice_page/multidevice_feature_behavior.js

@@ -92,8 +92,6 @@ const MultiDeviceFeatureBehaviorImpl = {
    */
   getFeatureName: function(feature) {
     switch (feature) {
-      case settings.MultiDeviceFeature.BETTER_TOGETHER_SUITE:
-        return this.i18n('multideviceSetupItemHeading');
       case settings.MultiDeviceFeature.INSTANT_TETHERING:
         return this.i18n('multideviceInstantTetheringItemTitle');
       case settings.MultiDeviceFeature.MESSAGES:

chrome/browser/resources/settings/multidevice_page/multidevice_feature_item.html

@@ -36,7 +36,7 @@
             subpageRoute, pageContentData, feature)]]">
       <iron-icon icon="[[getIconName(feature)]]"></iron-icon>
       <div id="item-text-container" class="middle">
-        <div id="featureName">[[getFeatureName(feature)]]</div>
+        [[getFeatureName(feature)]]
         <div class="secondary"
             id="featureSecondary"
             inner-h-t-m-l="[[getFeatureSummaryHtml(feature)]]">
@@ -47,7 +47,7 @@
               subpageRoute, pageContentData, feature)]]"
           restamp>
         <paper-icon-button-light class="subpage-arrow">
-          <button aria-labelledby="featureName"
+          <button aria-label="[[getFeatureName(feature)]]"
               aria-describedby="featureSecondary"></button>
         </paper-icon-button-light>
         <div class="separator"></div>

chrome/browser/resources/settings/multidevice_page/multidevice_feature_toggle.html

@@ -8,7 +8,6 @@
 <dom-module id="settings-multidevice-feature-toggle">
   <template>
     <cr-toggle id="toggle"
-        aria-label$="[[getFeatureName(feature)]]"
         checked="{{checked_}}"
         disabled="[[!isFeatureStateEditable(feature, pageContentData)]]"
         on-change="onChange_">

chrome/browser/resources/settings/multidevice_page/multidevice_page.html

@@ -63,7 +63,7 @@
                 if="[[doesClickOpenSubpage_(pageContentData)]]"
                 restamp>
               <paper-icon-button-light class="subpage-arrow">
-                <button aria-labelledby="multidevice-label"
+                <button aria-label="[[getLabelText_(pageContentData)]]"
                     aria-describedby="mutltideviceSubLabel"></button>
               </paper-icon-button-light>
             </template>

chrome/browser/resources/settings/multidevice_page/multidevice_subpage.html

@@ -123,6 +123,7 @@
             on-click="onForgetDeviceDialogCancelClick_">
           $i18n{cancel}
         </paper-button>
+
         <paper-button id="confirmButton"
             class="action-button"
             on-click="onForgetDeviceDialogConfirmClick_">