trx_sys_print_mysql_binlog_offset_from_page(): Enclose the definition

in #ifdef UNIV_HOTBACKUP, to match the function declaration.

trx/trx0sys.c

@@ -646,6 +646,7 @@ trx_sys_update_mysql_binlog_offset(
 			 MLOG_4BYTES, mtr);
 }
 
+#ifdef UNIV_HOTBACKUP
 /*********************************************************************
 Prints to stderr the MySQL binlog info in the system header if the
 magic number shows it valid. */
@@ -677,6 +678,7 @@ trx_sys_print_mysql_binlog_offset_from_page(
 			+ TRX_SYS_MYSQL_LOG_NAME);
 	}
 }
+#endif /* UNIV_HOTBACKUP */
 
 /*********************************************************************
 Stores the MySQL binlog offset info in the trx system header if