message: ci: Remove duplicated browsers on SauceLabs
diff: @@ -229,9 +229,7 @@ module.exports = function(grunt) {
  ['Windows 7', 'internet explorer', '10'],
  ['Windows 10', 'chrome', 'latest'],
  ['Windows 10', 'firefox', 'latest'],
  - ['macOS 10.12', 'safari', '10'],
  - ['macOS 10.12', 'chrome', 'latest'],
  - ['macOS 10.12', 'firefox', 'latest']
  + ['macOS 10.12', 'safari', '10']
  ],
  public: 'public',
  tunnelArgs: ['--verbose'],
  