Remove unused imports in sample

See gh-45554

Signed-off-by: Yanming Zhou <[email protected]>

Author: quaff

spring-boot-project/spring-boot-docs/src/main/kotlin/org/springframework/boot/docs/features/externalconfig/typesafeconfigurationproperties/constructorbinding/primaryconstructor/MyProperties.kt

@@ -17,8 +17,6 @@
 package org.springframework.boot.docs.features.externalconfig.typesafeconfigurationproperties.constructorbinding.primaryconstructor
 
 import org.springframework.boot.context.properties.ConfigurationProperties
-import org.springframework.boot.context.properties.bind.DefaultValue
-import java.net.InetAddress
 
 @ConfigurationProperties("my")
 class MyProperties() {