Do not render nullability in UltraLightChecker when it's irrelevant

It's necessary because after next changes,
they become different for ultra and old light classes.
The former (ultra) is more correct but it doesn't help when
we need to compare our implementation with reference

compiler/testData/asJava/ultraLightClasses/inferringAnonymousObjectTypes.java

@@ -29,21 +29,19 @@ public final class ArrayOfAnonymous /* ArrayOfAnonymous*/ {
 }
 
 final class C /* C*/ {
-  @null()
-  private final int y;
-
   @org.jetbrains.annotations.NotNull()
   private final kotlin.jvm.functions.Function0<java.lang.Object> initChild;
 
-  @null()
-  public  C(@null() int);
+  private final int y;
 
   @null()
-  public final int getY();
+  public  C(int);
 
   @org.jetbrains.annotations.NotNull()
   public final kotlin.jvm.functions.Function0<java.lang.Object> getInitChild();
 
+  public final int getY();
+
 }
 
 public abstract class Super /* Super*/ {