Replace test with simpler test

Also lets not auto convert old notes title format.

test/note_serializer_test.dart

@@ -95,8 +95,9 @@ void main() {
       expect(note.title, "Why not ☕?");
 
       serializer.encode(note, doc);
-      expect(doc.body, "# Why not :coffee:?\n\nI :heart: you");
+      expect(note.body, "I ❤️ you");
-      expect(doc.props.length, 0);
+      expect(note.title, "Why not ☕?");
+      expect(doc.props.length, 1);
     });
 
     test('Test Note ExtraProps', () {

test/note_test.dart

@@ -217,39 +217,5 @@ Gee
       expect(txtNote.title.isEmpty, true);
       expect(txtNote.body, content);
     });
-
-    test('Yaml is not touched with yaml disabled', () async {
-      var content = """---
-layout: post
-title: Blogging
-date: 2020-08-12T13:53:52+02:00
-categories: can-learn-foo
-permalink: /:categories
----
-
-Blah blah""";
-
-      var notePath = p.join(tempDir.path, "note63345.md");
-      await File(notePath).writeAsString(content);
-
-      var parentFolder = NotesFolderFS(null, tempDir.path);
-      var note = Note(parentFolder, notePath);
-      await note.load();
-
-      note.body = "Howdy";
-      await note.save();
-
-      var actualContent = await File(notePath).readAsString();
-      var expectedContent = """---
-layout: post
-title: Blogging
-date: 2020-08-12T13:53:52+02:00
-categories: can-learn-foo
-permalink: /:categories
----
-
-Howdy""";
-      expect(actualContent, expectedContent);
-    });
   });
 }