[Test] Update testdata of quickfix tests related to sealed classes

idea/testData/quickfix/increaseVisibility/invalidSealedClassInheritance.kt

@@ -1,11 +1,10 @@
 // "Make '<init>' public" "false"
 // "Make '<init>' internal" "false"
 // ACTION: Introduce import alias
-// ERROR: Cannot access '<init>': it is private in 'SealedClass'
 // ERROR: This type is sealed, so it can be inherited by only its own nested classes or objects
 
 sealed class SealedClass
 
 fun test() {
     class Test : <caret>SealedClass()
-}
+}