remove unused imports

Author: vladak

opengrok-indexer/src/test/java/org/opengrok/indexer/history/SCCSRepositoryTest.java

@@ -30,9 +30,7 @@
 
 import java.io.File;
 import java.io.IOException;
-import java.net.URISyntaxException;
 import java.nio.file.Files;
-import java.nio.file.Paths;
 import java.util.Date;
 import java.util.List;
 import java.util.Set;