Remove unused imports

h2/src/main/org/h2/mvstore/db/MVPrimaryIndex.java

@@ -19,10 +19,8 @@ import org.h2.index.BaseIndex;
 import org.h2.index.Cursor;
 import org.h2.index.IndexType;
 import org.h2.message.DbException;
-import org.h2.mvstore.MVMap;
 import org.h2.mvstore.tx.Transaction;
 import org.h2.mvstore.tx.TransactionMap;
-import org.h2.mvstore.tx.VersionedValue;
 import org.h2.result.Row;
 import org.h2.result.SearchRow;
 import org.h2.result.SortOrder;