Use string json

Author: courtneyeh

Diff for: validator/remote/src/integration-test/java/tech/pegasys/teku/validator/remote/typedef/OkHttpValidatorTypeDefClientTest.java

@@ -26,7 +26,6 @@
 import static tech.pegasys.teku.infrastructure.http.HttpStatusCodes.SC_NO_CONTENT;
 import static tech.pegasys.teku.infrastructure.http.HttpStatusCodes.SC_OK;
 import static tech.pegasys.teku.infrastructure.json.JsonUtil.serialize;
-import static tech.pegasys.teku.infrastructure.json.types.CoreTypes.INTEGER_TYPE;
 import static tech.pegasys.teku.spec.config.SpecConfig.FAR_FUTURE_EPOCH;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
@@ -45,7 +44,6 @@
 import tech.pegasys.teku.ethereum.json.types.beacon.StateValidatorData;
 import tech.pegasys.teku.ethereum.json.types.validator.AttesterDuties;
 import tech.pegasys.teku.ethereum.json.types.validator.AttesterDuty;
-import tech.pegasys.teku.infrastructure.json.types.DeserializableTypeDefinition;
 import tech.pegasys.teku.infrastructure.ssz.SszDataAssert;
 import tech.pegasys.teku.infrastructure.ssz.SszList;
 import tech.pegasys.teku.infrastructure.unsigned.UInt64;
@@ -437,9 +435,7 @@ public void postAttesterDuties_WhenSuccess_ReturnsResponse()
     assertThat(recordedRequest.getMethod()).isEqualTo("POST");
     assertThat(recordedRequest.getHeader("Content-Type")).isEqualTo(JSON_CONTENT_TYPE);
     assertThat(recordedRequest.getBody().readByteArray())
-        .isEqualTo(
-            serialize(validatorIndices, DeserializableTypeDefinition.listOf(INTEGER_TYPE, 1))
-                .getBytes(UTF_8));
+        .isEqualTo("[\"1\",\"2\"]".getBytes(UTF_8));
 
     assertThat(result).isPresent();
     assertThat(result.get()).isEqualTo(response);