Fix lint issue on feature-mm-submissions branch

feature-mm-submissions branch causes lint error on npm test

/Users/sushil/project/tc/community-app/src/shared/components/challenge-listing/ChallengeCard/Status/index.jsx
  335:15  error  'detailLink' PropType is defined but prop is never used               react/no-unused-prop-types
  337:28  error  'openChallengesInNewTabs' PropType is defined but prop is never used  react/no-unused-prop-types

��� 2 problems (2 errors, 0 warnings)

PR to branch https://github.com/topcoder-platform/community-app/tree/feature-mm-submissions

Final Submission Guidelines

Git issue link: https://github.com/topcoder-platform/community-app/issues/3618