C3: clear nmmeta files on boot (#22149)

* C3: clear nmmeta files on boot

* Update launch_chffrplus.sh

Co-authored-by: Willem Melching <willem.melching@gmail.com>

Co-authored-by: Willem Melching <willem.melching@gmail.com>
old-commit-hash: 84d37141a8

launch_chffrplus.sh

@@ -111,10 +111,15 @@ function tici_init {
     sleep 3
   fi
 
+  # setup governors
   sudo su -c 'echo "performance" > /sys/class/devfreq/soc:qcom,memlat-cpu0/governor'
   sudo su -c 'echo "performance" > /sys/class/devfreq/soc:qcom,memlat-cpu4/governor'
+
+  # TODO: move this to agnos
+  # network manager config
   nmcli connection modify --temporary lte gsm.auto-config yes
   nmcli connection modify --temporary lte gsm.home-only yes
+  sudo rm -f /data/etc/NetworkManager/system-connections/*.nmmeta
 
   # set success flag for current boot slot
   sudo abctl --set_success