Fix cocoapods tests integration.

Author: Vladislav Grigoryev

Example/Source/MainViewController.swift

@@ -38,7 +38,7 @@ final class MainViewController: ViewController {
     items.append((title: "ARKit Example", controller: ARKitViewController.self))
     items.append((title: "SceneKit Example", controller: SceneKitViewController.self))
     if #available(iOS 13, *) {
-      #if !NON_REALITY
+      #if !COCOAPODS
       items.append((title: "RealityKit Example", controller: RealityKitViewController.self))
       #endif
       items.append( (title: "Metal Example", controller: MetalViewController.self))

SCNRecorder.podspec

@@ -21,7 +21,6 @@ Pod::Spec.new do |s|
     app_spec.exclude_files       = 'Example/Source/Content/RealityKit/*'
     app_spec.preserve_path       = 'Example/Source/Example-Bridging-Header.h'
     app_spec.resources           = 'Example/Source/Resources/**/*.{scnassets,xcassets}'
-    app_spec.compiler_flags      = '-DNON_REALITY'
     app_spec.pod_target_xcconfig = {
       "SWIFT_OBJC_BRIDGING_HEADER" => "SCNRecorder/Example/Source/Example-Bridging-Header.h"
     }