Remove check for relative pathin java_io_test.

pkg/analyzer/test/generated/java_io_test.dart

Index: pkg/analyzer/test/generated/java_io_test.dart
diff --git a/pkg/analyzer/test/generated/java_io_test.dart b/pkg/analyzer/test/generated/java_io_test.dart
index 7af55eb151d576eaff1c4de107b6ec4786d61519..c8b881fab82bd53b9acbdd812e6a8687d96f1749 100644
--- a/pkg/analyzer/test/generated/java_io_test.dart
+++ b/pkg/analyzer/test/generated/java_io_test.dart
@@ -37,8 +37,9 @@ main() {
           String path = join(tempPath, 'foo.dart');
           expect(isAbsolute(path), isTrue);
           // prepare a relative path
+          // We should not check that "relPath" is actually relative -
+          // it may be not on Windows, if "temp" is on other disk.
           String relPath = relative(path);
-          expect(isAbsolute(relPath), isFalse);
           // test that toURI() returns an absolute URI
           Uri uri = new JavaFile(relPath).toURI();
           expect(uri.isAbsolute, isTrue);