Fix unused curr_time variable with systemd enabled

Author: LocutusOfBorg

src/daemon/dlt-daemon.c

@@ -4351,9 +4351,6 @@ int dlt_daemon_send_ringbuffer_to_client(DltDaemon *daemon, DltDaemonLocal *daem
     int ret;
     static uint8_t data[DLT_DAEMON_RCVBUFSIZE];
     int length;
-#ifdef DLT_SYSTEMD_WATCHDOG_ENABLE
-    uint32_t curr_time = 0U;
-#endif
 
     PRINT_FUNCTION_VERBOSE(verbose);