Updates after merging from main

Author: LikeTheSalad

disk-buffering/src/main/java/io/opentelemetry/contrib/disk/buffering/exporters/SpanToDiskExporter.java

@@ -17,7 +17,6 @@
 
 /** Exporter that stores spans into disk. */
 public final class SpanToDiskExporter implements SpanExporter {
-  private static final SignalType TYPE = SignalType.SPAN;
 
   private final SignalStorageExporter<SpanData> storageExporter;
   private final ExporterCallback<SpanData> callback;

disk-buffering/src/main/java/io/opentelemetry/contrib/disk/buffering/storage/impl/FileStorageConfiguration.java

@@ -9,7 +9,6 @@
 import static java.util.concurrent.TimeUnit.SECONDS;
 
 import com.google.auto.value.AutoValue;
-import java.io.File;
 
 /** Defines how the storage should be managed. */
 @AutoValue