Cassandra import cleanup.

Author: Tom May

plugins/cassandra/src/main/java/org/elasticsearch/cassandra/blobstore/AbstractCassandraBlobContainer.java

@@ -45,7 +45,6 @@
 
 import javax.annotation.Nullable;
 import java.io.IOException;
-import java.io.InputStream;
 import java.nio.charset.Charset;
 import java.nio.ByteBuffer;
 import java.util.ArrayList;

plugins/cassandra/src/main/java/org/elasticsearch/cassandra/blobstore/CassandraClientFactory.java

@@ -21,7 +21,6 @@
 
 import java.io.IOException;
 
-import org.apache.thrift.TException;
 import org.apache.thrift.protocol.TBinaryProtocol;
 import org.apache.thrift.protocol.TProtocol;
 import org.apache.thrift.transport.TFramedTransport;

plugins/cassandra/src/main/java/org/elasticsearch/cassandra/blobstore/CassandraImmutableBlobContainer.java

@@ -24,14 +24,11 @@
 import org.elasticsearch.common.blobstore.support.BlobStores;
 
 import org.apache.cassandra.thrift.Column;
-import org.apache.cassandra.thrift.ColumnParent;
 import org.apache.cassandra.thrift.ColumnOrSuperColumn;
 import org.apache.cassandra.thrift.ConsistencyLevel;
 import org.apache.cassandra.thrift.Cassandra;
 import org.apache.cassandra.thrift.InvalidRequestException;
 import org.apache.cassandra.thrift.Mutation;
-import org.apache.cassandra.thrift.SlicePredicate;
-import org.apache.cassandra.thrift.SliceRange;
 import org.apache.cassandra.thrift.TimedOutException;
 import org.apache.cassandra.thrift.UnavailableException;