7311: Remove unused code, update tests to use used code (#7772)

* 7311: Remove unused code, update tests to use used code

Signed-off-by: Matilda Clerke <matilda.clerke@consensys.net>

* 7311: Disable invalid test

Signed-off-by: Matilda Clerke <matilda.clerke@consensys.net>

---------

Signed-off-by: Matilda Clerke <matilda.clerke@consensys.net>

ethereum/eth/src/main/java/org/hyperledger/besu/ethereum/eth/sync/tasks/GetReceiptsForHeadersTask.java

@@ -42,7 +42,7 @@ import org.slf4j.LoggerFactory;
 public class GetReceiptsForHeadersTask
     extends AbstractRetryingPeerTask<Map<BlockHeader, List<TransactionReceipt>>> {
   private static final Logger LOG = LoggerFactory.getLogger(GetReceiptsForHeadersTask.class);
-  private static final int DEFAULT_RETRIES = 5;
+  protected static final int DEFAULT_RETRIES = 5;
 
   private final EthContext ethContext;
 
@@ -65,14 +65,6 @@ public class GetReceiptsForHeadersTask
     completeEmptyReceipts(headers);
   }
 
-  public static GetReceiptsForHeadersTask forHeaders(
-      final EthContext ethContext,
-      final List<BlockHeader> headers,
-      final int maxRetries,
-      final MetricsSystem metricsSystem) {
-    return new GetReceiptsForHeadersTask(ethContext, headers, maxRetries, metricsSystem);
-  }
-
   public static GetReceiptsForHeadersTask forHeaders(
       final EthContext ethContext,
       final List<BlockHeader> headers,

ethereum/eth/src/test/java/org/hyperledger/besu/ethereum/eth/sync/tasks/GetReceiptsForHeadersTaskTest.java

@@ -30,11 +30,19 @@ import java.util.List;
 import java.util.Map;
 
 import com.google.common.collect.ImmutableMap;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
 public class GetReceiptsForHeadersTaskTest
     extends RetryingMessageTaskTest<Map<BlockHeader, List<TransactionReceipt>>> {
 
+  @BeforeEach
+  @Override
+  public void resetMaxRetries() {
+    maxRetries = GetReceiptsForHeadersTask.DEFAULT_RETRIES;
+  }
+
   @Override
   protected Map<BlockHeader, List<TransactionReceipt>> generateDataToBeRequested() {
     // Setup data to be requested and expected response
@@ -50,8 +58,7 @@ public class GetReceiptsForHeadersTaskTest
   protected EthTask<Map<BlockHeader, List<TransactionReceipt>>> createTask(
       final Map<BlockHeader, List<TransactionReceipt>> requestedData) {
     final List<BlockHeader> headersToComplete = new ArrayList<>(requestedData.keySet());
-    return GetReceiptsForHeadersTask.forHeaders(
-        ethContext, headersToComplete, maxRetries, metricsSystem);
+    return GetReceiptsForHeadersTask.forHeaders(ethContext, headersToComplete, metricsSystem);
   }
 
   @Test
@@ -68,4 +75,13 @@ public class GetReceiptsForHeadersTaskTest
 
     assertThat(createTask(expected).run()).isCompletedWithValue(expected);
   }
+
+  @Override
+  @Test
+  @Disabled
+  public void failsWhenPeerReturnsPartialResultThenStops() {
+    // Test is not valid when more than 4 retries are allowed, as is always the case with
+    // GetReceiptsForHeadersTask, because the peer is forcefully disconnected after failing
+    // too many times
+  }
 }