Remove Object from supertypes in LoadJava testData

compiler/testData/loadJava/compiledJavaCompareWithKotlin/NestedClass.txt

@@ -1,9 +1,9 @@
 package test
 
-public open class NestedClass : java.lang.Object {
+public open class NestedClass {
     public constructor NestedClass()
-    
-    public open class Nested : java.lang.Object {
+
+    public open class Nested {
         public constructor Nested()
     }
 }