refactor: remove release code (#57957)

client/src/components/Map/index.tsx

@@ -3,7 +3,6 @@ import { useTranslation } from 'react-i18next';
 import { connect } from 'react-redux';
 import { createSelector } from 'reselect';
 import { Spacer } from '@freecodecamp/ui';
-import { useFeature } from '@growthbook/growthbook-react';
 
 import {
   type SuperBlocks,
@@ -139,7 +138,6 @@ function Map({
   allChallenges
 }: MapProps): React.ReactElement {
   const { t } = useTranslation();
-  const showNextCurriculum = useFeature('fcc-10').on;
 
   const allSuperblockChallengesCompleted = (superblock: SuperBlocks) => {
     // array of all challenge ID's in the superblock
@@ -168,8 +166,7 @@ function Map({
     <div className='map-ui' data-test-label='curriculum-map'>
       {getStageOrder({
         showNewCurriculum,
-        showUpcomingChanges,
-        showNextCurriculum
+        showUpcomingChanges
       }).map(stage => (
         <Fragment key={stage}>
           <h2 className={forLanding ? 'big-heading' : ''}>