Remove limit on statistics to DS / MM

Author: jmgasper

src/services/ChallengeService.js

@@ -1353,12 +1353,6 @@ getChallenge.schema = {
  */
 async function getChallengeStatistics(currentUser, id) {
   const challenge = await getChallenge(currentUser, id);
-  // for now, only Data Science challenges are supported
-  if (challenge.type !== "Challenge" && challenge.track !== "Data Science") {
-    throw new errors.BadRequestError(
-      `Challenge of type ${challenge.type} and track ${challenge.track} does not support statistics`
-    );
-  }
   // get submissions
   const submissions = await helper.getChallengeSubmissions(challenge.id);
   // for each submission, load member profile