made rsync not download again after files get touched
diff --git a/aos/build/build.sh b/aos/build/build.sh
index 60be0dd..79f7fa8 100755
--- a/aos/build/build.sh
+++ b/aos/build/build.sh
@@ -67,7 +67,7 @@
   case ${ACTION} in
     deploy)
       [ ${PLATFORM} == atom ] && \
-        rsync --progress -t -r --rsync-path=/home/driver/bin/rsync \
+        rsync --progress -r --rsync-path=/home/driver/bin/rsync \
         ${OUTDIR}/Default/outputs/* \
         driver@`${AOS}/build/get_ip fitpc`:/home/driver/robot_code/bin
       [ ${PLATFORM} == crio ] && \