Remove session management configuration

Deleted the session management block that limited maximum sessions to one in TurSecurityConfigProduction. This change may allow multiple concurrent sessions per user.

Author: alegauss

turing-app/src/main/java/com/viglet/turing/spring/security/TurSecurityConfigProduction.java

@@ -91,8 +91,6 @@ SecurityFilterChain filterChain(HttpSecurity http,
                                 mvc.matcher("/api/v2/guest/**"),
                                 mvc.matcher("/h2/**")))
                 .addFilterAfter(new TurCsrfCookieFilter(), BasicAuthenticationFilter.class);
-        http.sessionManagement(sess -> sess
-                .maximumSessions(1));
         if (turConfigProperties.isKeycloak()) {
             String keycloakUrlFormat =
                     String.format("%s/protocol/openid-connect/logout?client_id=%s&post_logout_redirect_uri=%s",