message: nix unused Primer CSS links
diff: import React from 'react'
  const primerPackages = [
  - 'primer-box',
  - 'primer-breadcrumb',
  + // 'primer-box',
  + // 'primer-breadcrumb',
  'primer-buttons',
  'primer-forms',
  'primer-layout',
  - 'primer-marketing',
  - 'primer-navigation',
  + // 'primer-marketing',
  + // 'primer-navigation',
  'primer-product',
  - // 'primer-support',
  // 'primer-table',
  'primer-tooltips',
  - 'primer-truncate',
  'primer-utilities',
  ]
  