remove doc link

Signed-off-by: wangshulin <[email protected]>

csi/shell/entrypoint.sh

@@ -7,7 +7,6 @@ check_directory() {
 
   if [ ! -d "$dir" ]; then
     echo "Error: $dir does not exist."
-    echo "See https://github.com/fluid-cloudnative/fluid/blob/master/docs/en/userguide/faq.md#4-why-does-the-driver-name-fusecsifluidio-not-found-in-the-list-of-registered-csi-drivers-error-appear-when-i-create-a-task-to-mount-the-pvc-created-by-runtime for more information!"
     exit 1
   fi
 }