update comment

ReleaseTooling/Sources/ZipBuilder/ModuleMapBuilder.swift

@@ -129,6 +129,10 @@ struct ModuleMapBuilder {
   private func generate(framework: FrameworkInfo) {
     let podName = framework.versionedPod.name
     let deps = CocoaPodUtils.transitiveVersionedPodDependencies(for: podName, in: allPods).filter {
+      // Don't include Interop pods in the module map calculation since they shouldn't add anything
+      // and it uses the platform-independent version of the dependency list, which causes a crash
+      // for the iOS-only RecaptchaInterop pod when the subsequent code tries to `pod install` it
+      // for macOS. All this module code should go away when we switch to building dynamic frameworks.
       !$0.name.hasSuffix("Interop")
     }