Removed:
- h1 {
  font-size: 2em;
  margin: 0.67em 0;
}
- mark {
  background: #ff0;
  color: #000;
}

- dfn {
  font-style: italic;
}

- figure {
  margin: 1em 40px;
}

- fieldset {
  border: 1px solid #c0c0c0;
  margin: 0 2px;
  padding: 0.35em 0.625em 0.75em;
}

from the original normalize.css, after a first revision, based on project's approach.