fix: remove response.status from returned object (#1698)

* remove response.status

* fix unit tests

* fix integration tests

* remove now-unneeded helper method

* fix rename

test/integration/requests/accountOffers.ts

@@ -31,10 +31,8 @@ describe('account_offers', function () {
         offers: [],
         validated: false,
       },
-      status: 'success',
       type: 'response',
     }
-    assert.equal(response.status, expected.status)
     assert.equal(response.type, expected.type)
     assert.equal(typeof response.result.ledger_current_index, 'number')
     assert.deepEqual(