chore: Remove obsolete method from ContractServiceImpl (#21405)

Signed-off-by: Stanimir Stoyanov <[email protected]>

Author: stoyanov-st

hedera-node/hedera-smart-contract-service-impl/src/main/java/com/hedera/node/app/service/contract/impl/ContractServiceImpl.java

@@ -3,7 +3,6 @@
 
 import static java.util.Objects.requireNonNull;
 
-import com.google.common.annotations.VisibleForTesting;
 import com.hedera.node.app.service.contract.ContractService;
 import com.hedera.node.app.service.contract.impl.exec.metrics.ContractMetrics;
 import com.hedera.node.app.service.contract.impl.exec.scope.DefaultVerificationStrategies;
@@ -23,10 +22,8 @@
 import edu.umd.cs.findbugs.annotations.Nullable;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Map;
 import java.util.Optional;
 import java.util.Set;
-import java.util.TreeMap;
 import java.util.function.Supplier;
 import org.hyperledger.besu.evm.operation.Operation;
 import org.hyperledger.besu.evm.tracing.OperationTracer;
@@ -126,12 +123,4 @@ public NativeLibVerifier nativeLibVerifier() {
         allCallTranslators.addAll(component.htsCallTranslators().get());
         return allCallTranslators;
     }
-
-    @VisibleForTesting
-    private Map<String, String> metricsInventory() {
-        final var inventory = new TreeMap<String, String>();
-        inventory.put("methods", component.systemContractMethodRegistry().allMethodsAsTable());
-        inventory.put("metrics", component.contractMetrics().allCountersAsTable());
-        return inventory;
-    }
 }