hotfix: ios archive error vs Xcode10+

[Holl9]

解决 ios archive 时，报错问题，报错信息如下：

Multiple commands produce '/Users/tu/Library/Developer/Xcode/DerivedData/Tituk-fndmfujccqhdareyswrxhslqzyvn/Build/Intermediates.noindex/ArchiveIntermediates/Tituk/IntermediateBuildFilesPath/UninstalledProducts/iphoneos/libyoga.a':

Target 'yoga' has a command with output '/Users/tu/Library/Developer/Xcode/DerivedData/Tituk-fndmfujccqhdareyswrxhslqzyvn/Build/Intermediates.noindex/ArchiveIntermediates/Tituk/IntermediateBuildFilesPath/UninstalledProducts/iphoneos/libyoga.a'
Target 'yoga' has a command with output '/Users/tu/Library/Developer/Xcode/DerivedData/Tituk-fndmfujccqhdareyswrxhslqzyvn/Build/Intermediates.noindex/ArchiveIntermediates/Tituk/IntermediateBuildFilesPath/UninstalledProducts/iphoneos/libyoga.a'

解决方案：
更新 podfile 内容：

  post_install do |installer|
    installer.pods_project.targets.each do |target|
      if target.name == "React"
        target.remove_from_project
      end

      if target.name == "yoga"
        target.remove_from_project
      end
    end
  end

执行 pod install
xcode workspace 选择 Legacy Build System
archive 操作成功