Update service_linux.sh

o2server/service_linux.sh

@@ -24,8 +24,6 @@ echo "Wants=network-online.target" >>${servicePath}
 echo "After=network.target" >>${servicePath}
 echo "[Service]" >>${servicePath}
 echo "Type=simple" >>${servicePath}
-echo "StandardOutput=null" >>${servicePath}
-echo "StandardError=null" >>${servicePath}
 echo "ExecStart=${current_dir}/${scriptName}" >>${servicePath}
 echo "ExecReload=${current_dir}/restart_linux.sh" >>${servicePath}
 echo "ExecStop=${current_dir}/stop_linux.sh" >>${servicePath}