Fix build: remove import in ListDateAndTimeTest (#2879)

Author: labkey-nicka

src/org/labkey/test/tests/list/ListDateAndTimeTest.java

@@ -3,7 +3,6 @@
 import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.ss.usermodel.Workbook;
 import org.jetbrains.annotations.Nullable;
-import org.joda.time.DateTime;
 import org.junit.AfterClass;
 import org.junit.Before;
 import org.junit.BeforeClass;
@@ -44,8 +43,6 @@
 import java.util.List;
 import java.util.Map;
 
-import static org.labkey.test.util.samplemanagement.SMTestUtils.COL_DATETIME_NAME;
-
 @Category({Daily.class, Data.class, Hosting.class})
 public class ListDateAndTimeTest extends BaseWebDriverTest
 {