Polish RequestCache continue Kolin Configuration

Issue gh-12089

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

@@ -19,11 +19,8 @@ DefaultSecurityFilterChain springSecurity(HttpSecurity http) throws Exception {
 .Kotlin
 [source,kotlin,role="secondary"]
 ----
-@EnableWebSecurity
-class SecurityConfig {
-
-	@Bean
-	open fun springSecurity(http: HttpSecurity): SecurityFilterChain {
+@Bean
+open fun springSecurity(http: HttpSecurity): SecurityFilterChain {
     val httpRequestCache = HttpSessionRequestCache()
     httpRequestCache.setMatchingRequestParameterName("continue")
     http {
@@ -32,7 +29,6 @@ class SecurityConfig {
         }
     }
     return http.build()
-	}
 }
 ----