[$30]Dashboard: remove legacy links from dashboard

[SathyaJayabal]

Dashboard: remove legacy links from dashboard : remove the below two links from the My dashboard page

[sushilshinde]

@topcoder-platform/topcodercompetitors @topcoder-platform/tcxcommunity this is open for pickup

Submit in 8 hours and PR to

https://github.com/topcoder-platform/community-app/tree/integration-v5-challenge-api
https://github.com/topcoder-platform/topcoder-react-lib/tree/integration-v5-challenge-api

run npm run test before PR

[crazyk07]

Contest https://www.topcoder.com/challenges/30128444 has been created for this ticket.

This is an automated message for crazyk via Topcoder X

[crazyk07]

Contest https://www.topcoder.com/challenges/30128444 has been updated - it has been assigned to cagdas001.

This is an automated message for crazyk via Topcoder X