test(express): refactor few test cases#7281

lokesh-bitgo merged 1 commit intomasterBitGo/BitGoJS:masterfrom

WP-6337-express-add-supertest-for-api-v-1-wallet-id-signtransaction-typed-routes-refactorBitGo/BitGoJS:WP-6337-express-add-supertest-for-api-v-1-wallet-id-signtransaction-typed-routes-refactorCopy head branch name to clipboard