Revert of [i18n] chromeos login i18n-content to $i18n{}

chrome/browser/resources/chromeos/login/oobe_screen_eula.html

 <div class="step right hidden animated eula-loading" id="eula" role="group"
      i18n-values="aria-label:eulaScreenAccessibleTitle" hidden>
   <oobe-eula-md id="oobe-eula-md" hidden></oobe-eula-md>
   <div id="oobe-eula">
     <div class="step-contents">
       <div id="eulas" class="eula-columns one-column">
         <div id="cros-eula" tabindex="0">
           <iframe id="cros-eula-frame" name="cros-eula-frame" class="eula-frame"
               src="about:blank"></iframe>
           <div id="cros-eula-loading">
             <div>
-              <p>$i18n{termsOfServiceLoading}</p>
+              <p i18n-content="termsOfServiceLoading"></p>
             </div>
           </div>
         </div>
         <div id="oem-eula">
           <iframe id="oem-eula-frame" name="oem-eula-frame" class="eula-frame">
           </iframe>
         </div>
       </div>
       <div id="logging">
         <div>
           <input aria-labelledby="usage-stats-label" id="usage-stats"
               type="checkbox">
         </div>
         <div>
-          <label id="usage-stats-label">$i18n{checkboxLogging}</label>
-          <a id="stats-help-link" href="#">$i18n{learnMore}</a>
+          <label id="usage-stats-label" i18n-content="checkboxLogging"></label>
+          <a id="stats-help-link" href="#" i18n-content="learnMore"></a>
         </div>
       </div>
     </div>
     <div id="eula-controls" class="step-controls"></div>
     <div id="eula-extra-controls" class="step-extra-controls">
       <div id="installation-settings">
-        <a id="installation-settings-link" href="#">
-          $i18n{eulaSystemInstallationSettings}
+        <a id="installation-settings-link" href="#"
+           i18n-content="eulaSystemInstallationSettings">
         </a>
       </div>
       <div id="eula-accessibility">
-        <a id="eula-accessibility-link" href="#" role="button">
-          $i18n{accessibilityLink}
-        </a>
+        <a id="eula-accessibility-link" href="#" role="button"
+          i18n-content="accessibilityLink"></a>
       </div>
       <div id="eula-chrome-credits"
           class="credits"><a id="eula-chrome-credits-link" href="#"
-          role="button">$i18n{chromeCreditsLink}</a></div>
+          role="button" i18n-content="chromeCreditsLink"></a></div>
       <div id="eula-chromeos-credits"
           class="credits"><a id="eula-chromeos-credits-link" href="#"
-          role="button">$i18n{chromeosCreditsLink}</a></div>
+          role="button" i18n-content="chromeosCreditsLink"></a></div>
     </div>
     <div id="eula-busy" class="step-loading">
       <div class="throbber"></div>
     </div>
   </div>
 </div>