hide key rotation option

src/app/settings/change-password.component.html

@@ -27,6 +27,7 @@
             </div>
         </div>
     </div>
+    <!--
     <div class="form-group">
         <div class="form-check">
             <input class="form-check-input" type="checkbox" id="rotateEncKey" name="RotateEncKey" [(ngModel)]="rotateEncKey"
@@ -40,6 +41,7 @@
             </a>
         </div>
     </div>
+    -->
     <button type="submit" class="btn btn-primary btn-submit" [disabled]="form.loading">
         <i class="fa fa-spinner fa-spin" title="{{'loading' | i18n}}"></i>
         <span>{{'changeMasterPassword' | i18n}}</span>