Remove unnecessary functions

Author: k163377

src/main/kotlin/com/fasterxml/jackson/module/kotlin/KotlinAnnotationIntrospector.kt

@@ -177,13 +177,11 @@ internal class KotlinAnnotationIntrospector(
     private fun Method.getRequiredMarkerFromAccessorLikeMethod(): Boolean? = this.kotlinFunction?.let { method ->
         val byAnnotation = this.isRequiredByAnnotation()
         return when {
-            method.isGetterLike() -> requiredAnnotationOrNullability(byAnnotation, method.returnType.isRequired())
             method.isSetterLike() -> requiredAnnotationOrNullability(byAnnotation, method.isMethodParameterRequired(0))
             else -> null
         }
     }
 
-    private fun KFunction<*>.isGetterLike(): Boolean = parameters.size == 1
     private fun KFunction<*>.isSetterLike(): Boolean = parameters.size == 2 && returnType == UNIT_TYPE
 
     private fun AnnotatedParameter.hasRequiredMarker(): Boolean? {
@@ -220,8 +218,6 @@ internal class KotlinAnnotationIntrospector(
             !(isPrimitive && !context.isEnabled(DeserializationFeature.FAIL_ON_NULL_FOR_PRIMITIVES))
     }
 
-    private fun KType.isRequired(): Boolean = !isMarkedNullable
-
     companion object {
         val UNIT_TYPE: KType = Unit::class.createType()
     }