umount without sleep, as umount -l detaches inmediately

common

@@ -39,22 +39,10 @@ chroot_setup() {
 
 chroot_teardown() {
   if (( ${#CHROOT_ACTIVE_MOUNTS[@]} )); then
-    local mount
-    local attempt
-
     umount -l "${CHROOT_ACTIVE_MOUNTS[@]}"
-
-    for mount in "${CHROOT_ACTIVE_MOUNTS[@]}"; do
-      attempt=1
-
-      while grep --quiet "${mount}" "/proc/mounts" && [[ "${attempt}" -le 50 ]]; do
-        sleep 0.1
-        attempt="$((attempt + 1))"
-      done
-    done
-
-    unset CHROOT_ACTIVE_MOUNTS
   fi
+
+  unset CHROOT_ACTIVE_MOUNTS
 }
 
 chroot_add_mount_lazy() {