fix review sort order being shown in v2 scheduler options

ts/deckoptions/ReviewOptions.svelte

@@ -22,12 +22,14 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 <div>
     <h2>{tr.schedulingReviews()}</h2>
 
+    {#if state.v3Scheduler}
         <EnumSelector
             label={tr.deckConfigSortOrder()}
             tooltip={tr.deckConfigReviewSortOrderTooltip()}
             choices={reviewOrderChoices}
             defaultValue={defaults.reviewOrder}
             bind:value={$config.reviewOrder} />
+    {/if}
 
     <CheckBox
         label={tr.deckConfigBuryReviewSiblings()}