Polish RequestCache continue Kolin Configuration

Issue gh-12089

docs/modules/ROOT/partials/servlet/architecture/request-cache-continue.adoc

@@ -19,9 +19,6 @@ DefaultSecurityFilterChain springSecurity(HttpSecurity http) throws Exception {
 .Kotlin
 [source,kotlin,role="secondary"]
 ----
-@EnableWebSecurity
-class SecurityConfig {
-
 @Bean
 open fun springSecurity(http: HttpSecurity): SecurityFilterChain {
     val httpRequestCache = HttpSessionRequestCache()
@@ -33,7 +30,6 @@ class SecurityConfig {
     }
     return http.build()
 }
-}
 ----
 
 .XML