archiveloop: don't clean on bootup

Only clean the cam image after successful archiving, to prevent
sentry events being deleted that haven't yet been archived, and
may be lost when snapshots are expired.

run/archiveloop

@@ -520,6 +520,7 @@ function archive_teslacam_clips () {
   log "There are $event_count event folder(s) with $sentry_count file(s) and $trackmode_count track mode file(s) to move." \
       " $ignore_count short recording(s) will be skipped."
 
+  local archive_success=true
   if [[ "$total_count" -gt 0 ]]
   then
     log "Starting recording archiving"
@@ -575,6 +576,7 @@ function archive_teslacam_clips () {
       message="Archiving completed successfully. "
     else
       message="Error during archiving. "
+      archive_success=false
     fi
 
     local -i sentry_archived=0
@@ -630,7 +632,12 @@ function archive_teslacam_clips () {
 
   if archive_is_reachable
   then
-    clean_cam_mount
+    if [ "$archive_success" = "true" ]
+    then
+      clean_cam_mount
+    else
+      log "Skipping cleaning step after archive error"
+    fi
   else
     log "Archive not reachable, assuming user drove away, skipping cleaning step"
   fi
@@ -850,8 +857,6 @@ if has_cam_disk
 then
   # don't need another fsck because fix_errors_in_images already did that
   /root/bin/make_snapshot.sh nofsck
-
-  clean_cam_mount
 fi
 
 connect_usb_drives_to_host