Remove some commented out code in the apps

Reviewed-by: NRichard Levitte <levitte@openssl.org>
Reviewed-by: NAndy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2774)

apps/ca.c

@@ -2132,7 +2132,7 @@ static int get_certificate_status(const char *serial, CA_DB *db)
     if (serial_len % 2) {
         /*
          * Set the first char to 0
-         */ ;
+         */
         row[DB_serial][0] = '0';
 
         /* Copy String from serial to row[DB_serial] */

apps/s_cb.c

@@ -1096,7 +1096,6 @@ void print_ssl_summary(SSL *s)
 {
     const SSL_CIPHER *c;
     X509 *peer;
-    /* const char *pnam = SSL_is_server(s) ? "client" : "server"; */
 
     BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
     print_raw_cipherlist(s);

apps/s_client.c

@@ -136,9 +136,6 @@ static void do_ssl_shutdown(SSL *ssl)
 #ifndef OPENSSL_NO_PSK
 /* Default PSK identity and key */
 static char *psk_identity = "Client_identity";
-/*
- * char *psk_key=NULL; by default PSK is not used
- */
 
 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
                                   unsigned int max_identity_len,
@@ -2405,7 +2402,6 @@ int s_client_main(int argc, char **argv)
                 BIO_printf(bio_err, "bad select %d\n",
                            get_last_socket_error());
                 goto shut;
-                /* goto end; */
             }
         }
 
@@ -2496,7 +2492,6 @@ int s_client_main(int argc, char **argv)
                 BIO_printf(bio_c_out, "DONE\n");
                 ret = 0;
                 goto shut;
-                /* goto end; */
             }
 
             sbuf_len -= i;
@@ -2566,7 +2561,6 @@ int s_client_main(int argc, char **argv)
             case SSL_ERROR_SSL:
                 ERR_print_errors(bio_err);
                 goto shut;
-                /* break; */
             }
         }
 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */