message: Meta: remove no-longer-necessary alignment CSS
diff: margin: -5px 0;
  }
  -/* Reposition committer's avatar on PR commits #3444 */
  -.pull-request-tab-content .commit .AvatarStack {
  - display: inline-block;
  - margin-bottom: -4px;
  - margin-right: -4px;
  -}
  -
  /* Add missing border radius to collapsed PR files #3444 */
  .js-blob-wrapper,
  .file:not(.open) .file-header.file-header--expandable {
  