[CI] Auto commit changes from spotless

Author: elasticsearchmachine

server/src/internalClusterTest/java/org/elasticsearch/index/engine/MergeWithLowDiskSpaceIT.java

@@ -12,7 +12,6 @@
 import org.elasticsearch.action.admin.cluster.node.stats.NodeStats;
 import org.elasticsearch.action.admin.cluster.node.stats.NodesStatsResponse;
 import org.elasticsearch.action.admin.indices.stats.IndicesStatsResponse;
-import org.elasticsearch.action.index.IndexRequestBuilder;
 import org.elasticsearch.cluster.DiskUsageIntegTestCase;
 import org.elasticsearch.cluster.metadata.IndexMetadata;
 import org.elasticsearch.common.settings.Settings;