Update #else and #endif comments

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index e65851f..9527698 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -31,7 +31,7 @@
     mbedtls_printf( "MBEDTLS_SSL_SRV_C not defined.\n" );
     mbedtls_exit( 0 );
 }
-#else
+#else /* !MBEDTLS_SSL_TEST_IMPOSSIBLE && MBEDTLS_SSL_SRV_C */
 
 #include <stdint.h>
 
@@ -4045,6 +4045,4 @@
     else
         mbedtls_exit( query_config_ret );
 }
-#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C && MBEDTLS_SSL_TLS_C &&
-          MBEDTLS_SSL_SRV_C && MBEDTLS_NET_C && MBEDTLS_RSA_C &&
-          MBEDTLS_CTR_DRBG_C */
+#endif /* !MBEDTLS_SSL_TEST_IMPOSSIBLE && MBEDTLS_SSL_SRV_C */