Clean up legacy dispute screen code

[Jinksi]

Part of #6883

Now that we've added all dispute details to the Transaction Details screen, we can remove code related to the now unused /payments/disputes/details screen.

• Update/rename the accept dispute action function to become the default hook, removing the legacy one. Addressed by Rename dispute action from acceptTransactionDetailsDispute() to acceptDispute() #7456.
  • Legacy acceptDispute action function can be removed

    • woocommerce-payments/client/data/disputes/actions.js

      Line 42 in 8c1558b

      export function* acceptDispute( id ) {

  • New action function added in Add Dispute Challenge and Accept buttons to Transaction Details #7093 can be renamed acceptDispute

    • woocommerce-payments/client/data/disputes/actions.js

      Line 101 in 8c1558b

      export function* acceptTransactionDetailsDispute( dispute ) {

• Remove openDisputeDetails() used by e2e tests. Addressed in Update dispute challenge/accept e2e tests to match changes to transaction details and order edit screens #7448.
• Remove the legacy dispute details page. Addressed in Rename dispute action from acceptTransactionDetailsDispute() to acceptDispute() #7456.
• Remove 'disputes' from the details-link ParentSegment type. Addressed in Remove 'dispute' from possible value of ParentSegment in details-link. #7460.
• Delete any other unused code used solely by the /payments/disputes/details screen. Addressed in Rename dispute action from acceptTransactionDetailsDispute() to acceptDispute() #7456.

[haszari]

Setting this zero SP as the work is estimated in #6883