Cleanup interop tests for Apple targets: unify it with appropriate createInterop { }

backend.native/tests/build.gradle

@@ -3560,8 +3560,8 @@ standaloneTest("interop_opengl_teapot") {
 }
 */
 
+if (PlatformInfo.isAppleTarget(project)) {
     interopTest("interop_objc_smoke") {
-    disabled = !isAppleTarget(project)
         goldValue = "84\nFoo\nDeallocated\n" +
                 "Hello, World!\nKotlin says: Hello, everybody!\nHello from Kotlin\n2, 1\n" +
                 "true\ntrue\n" +
@@ -3599,9 +3599,7 @@ interopTest("interop_objc_smoke") {
     }
 
     interopTest("interop_objc_global_initializer") {
-    disabled = !isAppleTarget(project)
         goldValue = "OK\n"
-
         source = "interop/objc_with_initializer/objc_test.kt"
         interop = 'objcMisc'
         flags = ['-g']
@@ -3619,8 +3617,6 @@ interopTest("interop_objc_global_initializer") {
     }
 
     interopTest("interop_objc_msg_send") {
-    disabled = !isAppleTarget(project)
-
         source = "interop/objc/msg_send/main.kt"
         interop = 'objcMessaging'
 
@@ -3637,11 +3633,11 @@ interopTest("interop_objc_msg_send") {
     }
 
     interopTest("interop_objc_kt34467") {
-    disabled = !isAppleTarget(project)
         source = "interop/objc/kt34467/foo.kt"
         interop = 'objcKt34467'
         goldValue = "OK\n42\n"
     }
+}
 
 standaloneTest("jsinterop_math") {
     doBeforeBuild {