Fix unit tests

pmd-core/src/main/java/net/sourceforge/pmd/lang/document/FileCollector.java

@@ -263,13 +263,9 @@ public final class FileCollector implements AutoCloseable {
 
     /**
      * Return the textfile's display name.
-     * test only
      */
     static String getDisplayNameLegacy(Path file, List<String> relativizeRoots) {
         String fileName = file.toString();
-        if ("jar".equals(file.toUri().getScheme())) {
-            fileName = URI.create(file.toUri().getSchemeSpecificPart()).getPath();
-        }
         for (String root : relativizeRoots) {
             if (file.startsWith(root)) {
                 if (fileName.startsWith(File.separator, root.length())) {