fixed checkstyle issue
@@ -20,7 +20,6 @@ import org.apache.nifi.components.ValidationResult;
import org.apache.nifi.controller.AbstractPort;
import org.apache.nifi.controller.ProcessScheduler;
import org.apache.nifi.flowfile.FlowFile;
-import org.apache.nifi.groups.BatchCounts;
import org.apache.nifi.groups.FlowFileConcurrency;
import org.apache.nifi.groups.FlowFileGate;
import org.apache.nifi.groups.FlowFileOutboundPolicy;
