Correct some Checkstyle violations

Follow-on to 13f32b28c90f4dda7ea21c95380d8c0879ba91fe.
diff --git a/blobstore/src/main/java/org/jclouds/blobstore/config/LocalBlobStore.java b/blobstore/src/main/java/org/jclouds/blobstore/config/LocalBlobStore.java
index 81c6ae3..e1dab9f 100644
--- a/blobstore/src/main/java/org/jclouds/blobstore/config/LocalBlobStore.java
+++ b/blobstore/src/main/java/org/jclouds/blobstore/config/LocalBlobStore.java
@@ -31,7 +31,6 @@
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.SequenceInputStream;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Date;
@@ -102,7 +101,6 @@
 import com.google.common.collect.FluentIterable;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Iterables;
-import com.google.common.collect.Iterators;
 import com.google.common.io.BaseEncoding;
 import com.google.common.io.ByteSource;
 import com.google.common.net.HttpHeaders;