fix(client): handle builds without all challenges (#61040)

Co-authored-by: Shaun Hamilton <shauhami020@gmail.com>

curriculum/schema/challenge-schema.js

@@ -162,7 +162,6 @@ const schema = Joi.object().keys({
   }),
   certification: Joi.string().regex(slugWithSlashRE),
   challengeType: Joi.number().min(0).max(31).required(),
-  checksum: Joi.number(),
   // TODO: require this only for normal challenges, not certs
   dashedName: Joi.string().regex(slugRE),
   demoType: Joi.string().valid('onClick', 'onLoad'),
@@ -183,7 +182,6 @@ const schema = Joi.object().keys({
     then: Joi.string()
   }),
   challengeFiles: Joi.array().items(fileJoi),
-  guideUrl: Joi.string().uri({ scheme: 'https' }),
   hasEditableBoundaries: Joi.boolean(),
   helpCategory: Joi.valid(
     'JavaScript',
@@ -217,7 +215,6 @@ const schema = Joi.object().keys({
     otherwise: Joi.string().allow('')
   }),
   isComingSoon: Joi.bool(),
-  isLocked: Joi.bool(),
   module: Joi.string().when('superBlock', {
     is: chapterBasedSuperBlocks,
     then: Joi.required(),