xcode删除多个版本的模拟器

大概就是在下面那两个文件夹的位置：
文件删除一下重启Xcode就可以了
Delete simulator refences for xCode:

Delete the particular simulator runtime references (*.simruntime) in the folder: /Library/Developer/CoreSimulator/Profiles/Runtimes

Delete simulator images from the hard disk:

Delete the particular simulator images (*.dmg) in the folder: ~/Library/Caches/com.apple.dt.Xcode/Downloads