Nixed unused imports, variables.

src/java/com/samskivert/depot/impl/DepotMarshaller.java

@@ -31,8 +31,6 @@ import java.sql.ResultSetMetaData;
 import java.sql.SQLException;
 import java.sql.Statement;
 
-import java.util.Arrays;
-import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -949,7 +947,6 @@ public class DepotMarshaller<T extends PersistentRecord>
             throw new IllegalArgumentException(
                 "Index flagged as complex, but no defining method '" + name + "' found.", nsme);
         }
-        Object result;
         try {
             return buildIndex(name, unique, method.invoke(null));
         } catch (Exception e) {

src/java/com/samskivert/depot/impl/clause/UpdateClause.java

@@ -25,7 +25,6 @@ import java.util.Collection;
 import com.samskivert.depot.PersistentRecord;
 import com.samskivert.depot.clause.QueryClause;
 import com.samskivert.depot.clause.WhereClause;
-import com.samskivert.depot.expression.ColumnExp;
 import com.samskivert.depot.expression.SQLExpression;
 
 import com.samskivert.depot.impl.ExpressionVisitor;