title: When does "rebuild from bitcode" showing in iOS archive phase?
body: <p>I have an <code>objective-C</code> project containing some <code>Swift</code> code. Which caused its size to be larger. <br/>
  In my other projects when I check the "rebuild from bitcode", the ipa size becomes smaller. but this option is not showing in archive phase of this project.<br/>
  bitcode enable is NO in build setting<br/></p>