Remove unused imports

Author: artembilan

spring-integration-file/src/main/java/org/springframework/integration/file/remote/AbstractRemoteFileStreamingMessageSource.java

@@ -18,7 +18,6 @@
 
 import java.io.IOException;
 import java.io.InputStream;
-import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
@@ -38,7 +37,6 @@
 import org.springframework.integration.file.FileHeaders;
 import org.springframework.integration.file.filters.FileListFilter;
 import org.springframework.integration.file.filters.ResettableFileListFilter;
-import org.springframework.integration.file.filters.ReversibleFileListFilter;
 import org.springframework.integration.file.remote.session.Session;
 import org.springframework.messaging.MessagingException;
 import org.springframework.util.Assert;

spring-integration-file/src/test/java/org/springframework/integration/file/remote/StreamingInboundTests.java

@@ -28,12 +28,10 @@
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.UncheckedIOException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Comparator;
 import java.util.List;
-import java.util.concurrent.BlockingQueue;
 import java.util.concurrent.ConcurrentHashMap;
 
 import org.junit.Rule;
@@ -45,13 +43,11 @@
 import org.springframework.integration.channel.QueueChannel;
 import org.springframework.integration.file.FileHeaders;
 import org.springframework.integration.file.filters.AbstractPersistentAcceptOnceFileListFilter;
-import org.springframework.integration.file.filters.AcceptOnceFileListFilter;
 import org.springframework.integration.file.remote.session.Session;
 import org.springframework.integration.file.remote.session.SessionFactory;
 import org.springframework.integration.file.splitter.FileSplitter;
 import org.springframework.integration.metadata.ConcurrentMetadataStore;
 import org.springframework.integration.metadata.SimpleMetadataStore;
-import org.springframework.integration.test.util.TestUtils;
 import org.springframework.integration.transformer.StreamTransformer;
 import org.springframework.messaging.Message;
 import org.springframework.messaging.MessagingException;