Remove API_VERSION 1.3 from tests on JvmDefault

So that these tests will now check behavior on the latest API version

compiler/testData/codegen/box/jvm8/defaults/compatibility/bridge2.kt

@@ -1,4 +1,3 @@
-// !API_VERSION: 1.3
 // !JVM_DEFAULT_MODE: compatibility
 // TARGET_BACKEND: JVM
 // FILE: Simple.java
@@ -34,4 +33,4 @@ interface KInterface2 : KInterface<String> {
 
 fun box(): String {
     return Foo().test()
-}
+}